Seiko Cal. 6657 - 305

The 6657-305 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6657 caliber with 22j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-5b96dae790ac]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1988

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