Seiko Cal. 6656 - 942

The 6656-942 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6656 caliber with 25j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-d23fccef8ef2]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1993

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