Seiko Cal. 7156 - 111

This Spring Drive model from 1981 features a 45mm Titanium case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-f112e45abe67]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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