Seiko Cal. 6257 - 643

Seiko 6257-643

The 6257-643 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-0cf96aa05bba]

Also known as: Silverwave

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
43mm
Case Thickness
10.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Black
Jewels
30j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1966

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