Doxa SUB 300T Professional

~$2,332 · 1 CHF = 1.234 USD (2026-07-22)

Year

2021

Category

Iconique

Reference

840.10.351.10

Case

42.5 x 44.5 mm · Acier

Material

Steel

Dial

Orange

Movement

Mécanique à remontage automatique Réserve de marche: 38 h, 28800 alt/h

Water resistance

1200 m

Price tier

$2K–$5K

Country

🇨🇭 Switzerland

In 1969, DOXA launched the SUB 300T Conquistador, the first mass-produced dive watch equipped with a helium escape valve.

More photos and full details on the official GPHG page.