Seiko Cal. 3873 - 707

The Seiko 3873-707 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-30bd5ac144a3]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1967

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