Seiko Cal. 6641 - 792

The 6641-792 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6641 caliber with 24j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-f39a5270c748]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1977

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