Seiko Cal. 7155 - 421

This Automatic model from 1978 features a 46mm PVD Black case. Powered by the 7155 caliber with 24j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-1e7d726d0d19]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1978

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