Seiko Cal. 5691 - 312

The Seiko 5691-312 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-2bf57aa82215]

Also known as: Sumo, Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1976

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