Seiko Cal. 5637 - 352

The Seiko 5637-352 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-882993ca2edf]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1977

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