Seiko Cal. 3873 - 722

This Hand-Winding model from 1978 features a 38mm Two-Tone case. Powered by the 3873 caliber with 31j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-1d68147b7c2d]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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