Seiko Cal. 3873 - 390

The Seiko 3873-390 represents an important milestone in Seiko's 1980 lineup. Powered by the 3873 caliber with 24j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-2414a89f4e0a]

Also known as: Monster, Rally

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

24j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1980

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