Seiko Cal. 7156 - 745

Seiko 7156-745

This Automatic model from 1977 features a 42mm PVD Black case. Powered by the 7156 caliber with 21j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-4271b833262f]

Also known as: Samurai, Baby Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
42mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Navy
Jewels
21j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1977

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