Seiko Cal. 6690 - 924

The 6690-924 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6690 caliber with 21j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-0f591d64fc47]

Also known as: Sumo, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1998

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