Seiko Cal. 4431 - 177

Seiko 4431-177

The 4431-177 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-228dfcd5d3df]

Also known as: Sportsmatic, Emperor

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
13.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
30m
Dial Color
Silver
Jewels
20j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1975

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