Seiko Cal. 7163 - 973

Seiko 7163-973

The Seiko 7163-973 represents an important milestone in Seiko's 1987 lineup. Powered by the 7163 caliber with 26j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-27eda7a3b5d7]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Cream
Jewels
26j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1987

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