Seiko Cal. 3891 - 957

Seiko 3891-957

The 3891-957 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-262b1a5a8bda]

Also known as: Bullhead, Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Green
Jewels
24j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1978

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