Seiko Cal. 7155 - 421

Seiko 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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