Seiko Cal. 7153 - 287

This Spring Drive model from 1978 features a 39mm Titanium case. With its 21mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-4343d6568b3e]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1978

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