Seiko Cal. 6227 - 656

The 6227-656 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6227 caliber with 24j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-3ec9a88b21e0]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1992

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