Seiko Cal. 5637 - 541

This Spring Drive model from 1984 features a 34mm Titanium case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-7545c1ddc2df]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1984

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