Seiko Cal. 4521 - 278

This Hand-Winding model from 1998 features a 37mm Stainless Steel case. Powered by the 4521 caliber with 18j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-fd1f6352e40c]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1998

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