Seiko Cal. 5634 - 963

This Hand-Winding model from 1980 features a 45mm Two-Tone case. It features a Cream dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-0fcc9cdd5993]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1980

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