Seiko Cal. 7153 - 320

Seiko 7153-320

This Spring Drive model from 1971 features a 45mm PVD Black case. Powered by the 7153 caliber with 23j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-ea83e19e0687]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
45mm
Case Thickness
12.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1971

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