Seiko Cal. 5668 - 220

The 5668-220 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5668 caliber with 36j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-e12e07cd5c6f]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1968

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