Seiko Cal. 4551 - 173

Seiko 4551-173

This Automatic model from 1975 features a 39mm Gold-Plated case. Powered by the 4551 caliber with 27j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-a4ce0c766d0e]

Also known as: Sportsmatic, World Timer

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
13.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Burgundy
Jewels
27j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1975

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