Seiko Cal. 5661 - 867

This Spring Drive model from 1976 features a 44mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-16fd1ae8e906]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1976

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