Seiko Cal. 6646 - 935

The 6646-935 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6646 caliber with 20j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-574b5c59bcc3]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1983

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