Make an Appointment
(800) 237-6437
Sub 300T Professional

DOXA

Sub 300T Professional

$2,150

X
Availability in store
  • Somers Point
    Not available
  • Newtown
    Not available


In 1968, DOXA launched the SUB 300T Conquistador, the first general public diver's watch equipped with a helium release valve. 50 years later, the new SUB 300T pays tribute to the groundbreaking original. This 3-hand diver's watch combines the aesthetic genes of the SUB 300T Conquistador with the technical refinements that define the high-performance diver's watch of today. 

Reference number: 840.10.351.21
Metal: Stainless Steel
Stock number: 311819
Size: 42mm
Dial: Orange
Straptype: Rubber
Movement: Swiss mechanical automatic, self-winding
Due to the recent unpredictability in gold prices, we cannot guarantee the prices of items currently out of stock.

100% Satisfaction Guarantee

Our customers come first! We guarantee to not only meet, but to exceed your expectations with the brilliant quality of our luxury jewelry. At Bernie Robbins, we guarantee to provide you with the best jewelery and the best buying experience. In most cases, you can return your purchase for a full refund.

Refund Policy

To ensure your complete satisfaction, you may return your purchase within 15 days to receive a full refund or 30 days to exchange your purchase for another item of equal or higher value. This excludes special orders and custom purchases.

Lifetime Diamond Upgrade

We are pleased to offer a lifetime diamond upgrade program, ensuring that at any time you can decide to make your ring even more beautiful with a diamond of greater value. This allows you to purchase a diamond at your budget now and whenever you are ready, you can simply upgrade to a bigger or higher quality diamond. The value will be determined by the purchase price as shown on its original receipt. Mounting will be accepted as part of the trade-in due to wear and will be valued at the price of gold at the time of trade-in.

You may also like

Yellow Gold Manchette
Frederique Constant

Yellow Gold Manchette

$2,795

Sub 200 C-Graph II Caribbean
DOXA

Sub 200 C-Graph II Caribbean

$2,950.00

Superocean Heritage B20 Automatic 42
Breitling

Superocean Heritage B20 Automatic 42

$7,600

SUPER CHRONOMAT B01 44
Breitling

SUPER CHRONOMAT B01 44

$11,900.00

Stainless Steel Master Collection
Longines

Stainless Steel Master Collection

$3,000.00

Stainless Steel Conquest
Longines

Stainless Steel Conquest

$2,200

Stainless Steel Master Collection Moonphase
Longines

Stainless Steel Master Collection Moonphase

$3,100.00

Super Chronomat B01 44
Breitling

Super Chronomat B01 44

$11,050

Stainless Steel Conquest
Longines

Stainless Steel Conquest

$4,750.00

Superocean Automatic 46
Breitling

Superocean Automatic 46

$5,700.00

NAVITIMER B01 CHRONOGRAPH 43
Breitling

NAVITIMER B01 CHRONOGRAPH 43

$10,300

Stainless Steel Legend Diver
Longines

Stainless Steel Legend Diver

$3,850.00

Two-Tone Mini Dolcevita
Longines

Two-Tone Mini Dolcevita

$8,050.00

NAVITIMER B01 CHRONOGRAPH 46
Breitling

NAVITIMER B01 CHRONOGRAPH 46

$10,700

Superocean Automatic 44
Breitling

Superocean Automatic 44

$5,700.00

Superocean Heritage B20 Automatic 44
Breitling

Superocean Heritage B20 Automatic 44

$6,150

Gold Tone Carrée
Frederique Constant

Gold Tone Carrée

$1,895

Sub 200 Sharkhunter
DOXA

Sub 200 Sharkhunter

$1,290.00

Stainless Steel Sub 200T GMT Sharkhunter Vintage Rubber Strap
DOXA

Stainless Steel Sub 200T GMT Sharkhunter Vintage Rubber Strap

$2,750.00

Chronograph 42
Breitling

Chronograph 42

$6,350

LA GRANDE CLASSIQUE DE LONGINES
Longines

LA GRANDE CLASSIQUE DE LONGINES

$2,100

Superocean Heritage B31 Automatic 42
Breitling

Superocean Heritage B31 Automatic 42

$6,200

Stainless Steel Legend Diver
Longines

Stainless Steel Legend Diver

$2,850

Stainless Steel Sub 200 Sharkhunter
DOXA

Stainless Steel Sub 200 Sharkhunter

$1,290.00

Sub 300 Aquamarine
DOXA

Sub 300 Aquamarine

$2,850.00

NAVITIMER B01 CHRONOGRAPH 43
Breitling

NAVITIMER B01 CHRONOGRAPH 43

$10,300

HYDROCONQUEST
Longines

HYDROCONQUEST

$2,400

Stainless Steel Sub 200T Sea Emerald
DOXA

Stainless Steel Sub 200T Sea Emerald

$1,790.00

Sub 200 Divingstar
DOXA

Sub 200 Divingstar

$1,250.00

Stainless Steel Sub 200 Divingstar Rubber Strap
DOXA

Stainless Steel Sub 200 Divingstar Rubber Strap

$1,250.00

Sub 300 Searambler
DOXA

Sub 300 Searambler

$2,890.00

Sub 600T Aquamarine
DOXA

Sub 600T Aquamarine

$1,690.00

Stainless Steel Conquest
Longines

Stainless Steel Conquest

$2,400

Avenger B01 Chronograph 44
Breitling

Avenger B01 Chronograph 44

$7,450.00

Stainless Steel Spirit Zulu Time
Longines

Stainless Steel Spirit Zulu Time

$3,550.00

Sub 200 C-Graph Searambler
DOXA

Sub 200 C-Graph Searambler

$2,790.00

Chronomat B01 42
Breitling

Chronomat B01 42

$9,650.00

NAVITIMER B01 CHRONOGRAPH 43
Breitling

NAVITIMER B01 CHRONOGRAPH 43

$10,300.00

Sub 200 Professional
DOXA

Sub 200 Professional

$1,250.00

Spirit Zulu Time Titanium
Longines

Spirit Zulu Time Titanium

$4,850.00

Stainless Steel Legend Diver
Longines

Stainless Steel Legend Diver

$3,500.00

Sub 300 Carbon Professional
DOXA

Sub 300 Carbon Professional

$4,390.00

Two-Tone Stainless Steel Hydroconquest
Longines

Two-Tone Stainless Steel Hydroconquest

$2,350.00

Doxa Army
DOXA

Doxa Army

$2,450.00

Avenger Automatic 42
Breitling

Avenger Automatic 42

$4,900.00

Superocean Heritage B31 Automatic 40
Breitling

Superocean Heritage B31 Automatic 40

$6,500.00

Sub 200 Caribbean
DOXA

Sub 200 Caribbean

$1,250

Stainless Steel Flagship Heritage Moonphase
Longines

Stainless Steel Flagship Heritage Moonphase

$3,450.00

Stainless Steel Sub 200 Caribbean Rubber Strap
DOXA

Stainless Steel Sub 200 Caribbean Rubber Strap

$1,250

Sub 300T Divingstar
DOXA

Sub 300T Divingstar

$2,150.00

NAVITIMER B01 CHRONOGRAPH 41
Breitling

NAVITIMER B01 CHRONOGRAPH 41

$10,300

Stainless Steel Mini Dolcevita
Longines

Stainless Steel Mini Dolcevita

$4,500

Stainless Steel Sub 300 Caribbean Rubber Strap
DOXA

Stainless Steel Sub 300 Caribbean Rubber Strap

$2,850.00

Superocean Heritage B20 Automatic 42
Breitling

Superocean Heritage B20 Automatic 42

$7,250

Superocean Heritage Chronograph 44
Breitling

Superocean Heritage Chronograph 44

$7,100

Stainless Steel Spirit Pilot
Longines

Stainless Steel Spirit Pilot

$3,100

Navitimer Automatic GMT 41
Breitling

Navitimer Automatic GMT 41

$6,450

Navitimer B01 Chronograph 41
Breitling

Navitimer B01 Chronograph 41

$10,700

Sub 300 Beta Aquamarine
DOXA

Sub 300 Beta Aquamarine

$2,490.00

Stainless Steel Hydroconquest GMT
Longines

Stainless Steel Hydroconquest GMT

$3,350

18K Rose Gold and Stainless Steel Conquest with Diamond Indexes
Longines

18K Rose Gold and Stainless Steel Conquest with Diamond Indexes

$4,050.00

Superocean Heritage Automatic 36
Breitling

Superocean Heritage Automatic 36

$5,500.00

Two-Tone Master Collection
Longines

Two-Tone Master Collection

$4,000.00

Top Time B31
Breitling

Top Time B31

$5,850

Chronomat Automatic GMT 40 NFL Philadelphia Eagles Edition
Breitling

Chronomat Automatic GMT 40 NFL Philadelphia Eagles Edition

$6,900.00

Stainless Steel Hydroconquest GMT
Longines

Stainless Steel Hydroconquest GMT

$3,350

Chronomat B01 42 Triumph
Breitling

Chronomat B01 42 Triumph

$11,900

Conquest Heritage Central Power Reserve
Longines

Conquest Heritage Central Power Reserve

$4,300.00

Stainless Steel Sub 200T Aquamarine Rubber Strap
DOXA

Stainless Steel Sub 200T Aquamarine Rubber Strap

$1,750.00

Sub 200 Whitepearl
DOXA

Sub 200 Whitepearl

$1,250.00

Super Chronomat B01 Chronograph 44 NFL Philadelphia Eagles
Breitling

Super Chronomat B01 Chronograph 44 NFL Philadelphia Eagles

$11,350.00

Two-Tone Mini Dolcevita
Longines

Two-Tone Mini Dolcevita

$5,500.00

Stainless Steel Conquest Heritage
Longines

Stainless Steel Conquest Heritage

$3,400

Sub 300 Beta Sharkhunter
DOXA

Sub 300 Beta Sharkhunter

$7,850.00

Sub 300T Sea Emerald
DOXA

Sub 300T Sea Emerald

$2,190.00

PREMIER B09 CHRONOGRAPH 40
Breitling

PREMIER B09 CHRONOGRAPH 40

$9,950

Navitimer Automatic 36
Breitling

Navitimer Automatic 36

$15,000.00

Stainless Steel Conquest with Diamond Indexes
Longines

Stainless Steel Conquest with Diamond Indexes

$2,950.00

Stainless Steel Hydroconquest
Longines

Stainless Steel Hydroconquest

$2,000.00

Navitimer B01 Chronograph 43
Breitling

Navitimer B01 Chronograph 43

$10,700

Chronomat B01 Chronograph 42
Breitling

Chronomat B01 Chronograph 42

$9,900

Navitimer Automatic 41
Breitling

Navitimer Automatic 41

$6,150.00

Stainless Steel Sub 250T GMT Sharkhunter Vintage
DOXA

Stainless Steel Sub 250T GMT Sharkhunter Vintage

$2,790

Chronomat B01 42
Breitling

Chronomat B01 42

$10,700

Explorer II White Dial
Rolex

Explorer II White Dial

$12,000

Avenger B01 Chronograph 44
Breitling

Avenger B01 Chronograph 44

$7,450.00

LA GRANDE CLASSIQUE DE LONGINES
Longines

LA GRANDE CLASSIQUE DE LONGINES

$2,050

NAVITIMER B01 CHRONOGRAPH 46
Breitling

NAVITIMER B01 CHRONOGRAPH 46

$10,300

Stainless Steel Legend Diver
Longines

Stainless Steel Legend Diver

$3,850.00

Sub 200 Sharkhunter
DOXA

Sub 200 Sharkhunter

$1,250.00

CHRONOMAT AUTOMATIC GMT 40
Breitling

CHRONOMAT AUTOMATIC GMT 40

$6,700.00

Classics Carrée Ladies
Frederique Constant

Classics Carrée Ladies

$1,895

Stainless Steel Hydroconquest
Longines

Stainless Steel Hydroconquest

$2,000

Stainless Steel Conquest Chronograph
Longines

Stainless Steel Conquest Chronograph

$4,250

Stainless Steel Sub 200T White Pearl
DOXA

Stainless Steel Sub 200T White Pearl

$1,790.00

Chronomat B01 42
Breitling

Chronomat B01 42

$9,650

Stainless Steel Index Automatic
Frederique Constant

Stainless Steel Index Automatic

$1,495

Sub 300 Carbon Aqua Lung US Divers
DOXA

Sub 300 Carbon Aqua Lung US Divers

$5,390.00

Superocean Heritage B31 Automatic 44
Breitling

Superocean Heritage B31 Automatic 44

$6,500.00

Ladies Two Tone Rose Dolce Vita
Longines

Ladies Two Tone Rose Dolce Vita

$4,650

Sub 200 Whitepearl
DOXA

Sub 200 Whitepearl

$1,290.00

Two-Tone Master Collection Moonphase
Longines

Two-Tone Master Collection Moonphase

$4,800.00

Top Time B01 Ford Thunderbird
Breitling

Top Time B01 Ford Thunderbird

$7,650.00

Stainless Steel Sub 300 Caribbean
DOXA

Stainless Steel Sub 300 Caribbean

$2,890.00

Sub 300 Whitepearl
DOXA

Sub 300 Whitepearl

$2,890.00

Sub 200 C-Graph Sharkhunter
DOXA

Sub 200 C-Graph Sharkhunter

$2,790.00

Superocean Heritage B01 Chronograph 44
Breitling

Superocean Heritage B01 Chronograph 44

$9,250.00

Stainless Steel Master Collection Moonphase
Longines

Stainless Steel Master Collection Moonphase

$3,075

Stainless Steel Premiere
Frederique Constant

Stainless Steel Premiere

$2,895

Sub 200 Divingstar
DOXA

Sub 200 Divingstar

$1,290.00

Stainless Steel Sub 200T Sea Emerald
DOXA

Stainless Steel Sub 200T Sea Emerald

$10,500.00

Stainless Steel Sub 250T GMT Professional
DOXA

Stainless Steel Sub 250T GMT Professional

$2,790.00

Stainless Steel Primaluna Moonphase
Longines

Stainless Steel Primaluna Moonphase

$5,650.00

Stainless Steel Sub 200 Professional
DOXA

Stainless Steel Sub 200 Professional

$1,250.00

Superocean Heritage B01 Chronograph 42
Breitling

Superocean Heritage B01 Chronograph 42

$9,300.00

Avenger Automatic 42
Breitling

Avenger Automatic 42

$5,200.00

CONQUEST HERITAGE
Longines

CONQUEST HERITAGE

$3,400

Two Tone Slimline Ladies
Frederique Constant

Two Tone Slimline Ladies

$1,795

Super Chronomat B01 44
Breitling

Super Chronomat B01 44

$30,900

Stainless Steel Hydroconquest
Longines

Stainless Steel Hydroconquest

$2,000

Two-Tone Stainless Steel Hydroconquest
Longines

Two-Tone Stainless Steel Hydroconquest

$2,350

Stainless Steel Heart Beat Moonphase Date
Frederique Constant

Stainless Steel Heart Beat Moonphase Date

$2,895

Superocean Automatic 42
Breitling

Superocean Automatic 42

$5,900

Gold Tone Slimline Ladies
Frederique Constant

Gold Tone Slimline Ladies

$1,895

Stainless Steel Primaluna Moonphase
Longines

Stainless Steel Primaluna Moonphase

$6,700.00

Stainless Steel Spirit Zulu Time
Longines

Stainless Steel Spirit Zulu Time

$3,550

Super Chronomat B01 44
Breitling

Super Chronomat B01 44

$10,650.00

Two-Tone Dolcevita
Longines

Two-Tone Dolcevita

$2,400

NAVITIMER B01 CHRONOGRAPH 41
Breitling

NAVITIMER B01 CHRONOGRAPH 41

$10,700.00

Superocean Heritage B20 Automatic 46
Breitling

Superocean Heritage B20 Automatic 46

$6,200.00

Stainless Steel Mini Dolcevita
Longines

Stainless Steel Mini Dolcevita

$2,100.00

Stainless Steel Sub 250T GMT Sea Emerald
DOXA

Stainless Steel Sub 250T GMT Sea Emerald

$2,790.00

Yellow Gold Manchette
Frederique Constant

Yellow Gold Manchette

$2,795

Sub 200 C-Graph II Caribbean
DOXA

Sub 200 C-Graph II Caribbean

$2,950.00

Superocean Heritage B20 Automatic 42
Breitling

Superocean Heritage B20 Automatic 42

$7,600

SUPER CHRONOMAT B01 44
Breitling

SUPER CHRONOMAT B01 44

$11,900.00

Stainless Steel Master Collection
Longines

Stainless Steel Master Collection

$3,000.00

Stainless Steel Conquest
Longines

Stainless Steel Conquest

$2,200

Stainless Steel Master Collection Moonphase
Longines

Stainless Steel Master Collection Moonphase

$3,100.00

Super Chronomat B01 44
Breitling

Super Chronomat B01 44

$11,050