Seiko Cal. 6257 - 303

Seiko 6257-303

The 6257-303 is a sought-after Automatic piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-5952d42019d2]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
30m
Dial Color
Burgundy
Jewels
27j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1972

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