Seiko Cal. 4537 - 536

The Seiko 4537-536 represents an important milestone in Seiko's 1966 lineup. It features a Cream dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-3f3d75101224]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1966

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