Seiko Cal. 7155 - 640

This Hand-Winding model from 1972 features a 38mm Titanium case. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-4363def967fd]

Also known as: Sumo, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1972

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