Seiko Cal. 6657 - 815

The Seiko 6657-815 represents an important milestone in Seiko's 1991 lineup. Powered by the 6657 caliber with 29j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-18a81b0942a1]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1991

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