Seiko Cal. 0718 - 310

This Automatic model from 1990 features a 40mm Two-Tone case. With its 22mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-cf196ffc1b22]

Also known as: Helmet, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1990

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