Seiko Cal. 4540 - 160

This Hand-Winding model from 1965 features a 37mm Stainless Steel case. With its 18mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-a55f56b77dff]

Also known as: Samurai, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1965

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