Seiko Cal. 6650 - 557

This Spring Drive model from 1991 features a 41mm Two-Tone case. Powered by the 6650 caliber with 36j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-0fc454a2b3f9]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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