Seiko Cal. 6131 - 545

This Spring Drive model from 1985 features a 37mm Hardlex-Coated Steel case. It features a Cream dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-73ab1b72c986]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1985

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