Seiko Cal. 3817 - 941

This Hand-Winding model from 1979 features a 37mm Titanium case. It features a Burgundy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-ed84744fca93]

Also known as: Tuna, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1979

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