Seiko Cal. 6356 - 439

This Hand-Winding model from 1967 features a 37mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-ef7f1ffeb0ed]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1967

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