Seiko Cal. 3873 - 748

This Automatic model from 1984 features a 39mm PVD Black case. Powered by the 3873 caliber with 17j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-25ac40d38174]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1984

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