Seiko Cal. 5691 - 668

The 5691-668 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5691 caliber with 22j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-3d7b71355745]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1969

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