Seiko Cal. 6631 - 458

Seiko 6631-458

The 6631-458 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-2b7532ecfcd5]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
15.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Green
Jewels
30j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1988

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