Seiko Cal. 5691 - 668

This Spring Drive model from 1972 features a 46mm Hardlex-Coated Steel case. Powered by the 5691 caliber with 23j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-5a03a8441b2b]

Also known as: Crown, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1972

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