Seiko Cal. 7153 - 556

This Quartz model from 1978 features a 41mm Titanium case. Powered by the 7153 caliber with 31j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-21a6045eec2b]

Also known as: World Timer, Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1978

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