Seiko Cal. 6257 - 439

Seiko 6257-439

The 6257-439 is a sought-after Kinetic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-4b076d2d8362]

Also known as: Sumo, Bullhead

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
22j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1975

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