Seiko Cal. 4536 - 131

The Seiko 4536-131 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-df590e27c874]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1977

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