Seiko Cal. 5633 - 370

This Spring Drive model from 1980 features a 37mm PVD Black case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-cdd33802cb5b]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1980

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