Seiko Cal. 3873 - 452

The Seiko 3873-452 represents an important milestone in Seiko's 1972 lineup. Powered by the 3873 caliber with 31j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-a1d67d365cb0]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1972

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