Seiko Cal. 3899 - 170

This Automatic model from 1971 features a 42mm PVD Black case. Powered by the 3899 caliber with 34j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-b2b4f67ef9f3]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1971

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