Seiko Cal. 6657 - 207

Seiko 6657-207

The 6657-207 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-ef5f3d22f32f]

Also known as: Monster, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
8.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Burgundy
Jewels
32j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1974

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