Seiko Cal. 4555 - 720

This Solar model from 1990 features a 40mm Stainless Steel case. With its 20mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-601008c45e87]

Also known as: Bullhead, Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1990

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