Seiko Cal. 7131 - 251

Seiko 7131-251

The 7131-251 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-c45f4f2e2201]

Also known as: Bullhead

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
14.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Silver
Jewels
20j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1965

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