Seiko Cal. 5691 - 358

This Automatic model from 1980 features a 36mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-0f1189707c53]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1980

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