Seiko Cal. 5634 - 788

This Hand-Winding model from 1991 features a 41mm Titanium case. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-ac2fceacba02]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1991

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