Seiko Cal. 4576 - 691

The Seiko 4576-691 represents an important milestone in Seiko's 1996 lineup. Powered by the 4576 caliber with 23j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-affdcaf48bdf]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1996

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