Seiko Cal. 6656 - 421

The 6656-421 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6656 caliber with 27j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-cf48b927aff3]

Also known as: Rally, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1967

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