Seiko Cal. 6657 - 460

The 6657-460 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6657 caliber with 34j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-6fab1c1a5989]

Also known as: Bullhead, Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1995

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