Seiko Cal. 3873 - 104

This Automatic model from 1970 features a 35mm Stainless Steel case. Powered by the 3873 caliber with 25j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-c9702ac10ece]

Also known as: Tuna, Pogue

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1970

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