Seiko Cal. 4537 - 428

The Seiko 4537-428 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-53debaa2a281]

Also known as: UFO, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1966

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