Seiko Cal. 5660 - 454

The 5660-454 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5660 caliber with 28j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-cbf72065c0fc]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1990

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