Seiko Cal. 6657 - 724

The 6657-724 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6657 caliber with 35j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-c7df0605fc49]

Also known as: Crown, Arnie

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

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