Seiko Cal. 5691 - 356

The Seiko 5691-356 represents an important milestone in Seiko's 1988 lineup. It features a Navy dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-a3e661288327]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1988

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