Seiko Cal. 4492 - 156

This Automatic model from 1968 features a 37mm PVD Black case. Powered by the 4492 caliber with 29j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-4c21314db7f6]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1968

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