Seiko Cal. 3873 - 370

The Seiko 3873-370 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 69 hours power reserve. [seikata-wm-a974637854d3]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1972

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