Seiko Cal. 4564 - 646

This Spring Drive model from 1998 features a 36mm Stainless Steel case. Powered by the 4564 caliber with 36j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-ccab9558a75a]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1998

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