Seiko Cal. 6631 - 560

Seiko 6631-560

The 6631-560 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-71700e5667f1]

Also known as: Panda, Sea Horse

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
12.6mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1975

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