Seiko Cal. 6654 - 387

The 6654-387 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6654 caliber with 20j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-c8d49133c54f]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1981

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