Seiko Cal. 4531 - 163

This Hand-Winding model from 1977 features a 36mm Titanium case. Powered by the 4531 caliber with 17j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-5c353e4649b3]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1977

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