Seiko Cal. 4540 - 306

This Spring Drive model from 1977 features a 38mm Titanium case. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-7e0e14bd1eeb]

Also known as: Samurai, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1977

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