Seiko Cal. 5617 - 634

This Hand-Winding model from 1973 features a 42mm Titanium case. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-8afb79978741]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1973

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