Seiko Cal. 4515 - 657

The Seiko 4515-657 represents an important milestone in Seiko's 1991 lineup. Powered by the 4515 caliber with 33j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-b9d841d65ddf]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1991

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