Seiko Cal. 6631 - 108

Seiko 6631-108

The 6631-108 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-02788a31d6db]

Also known as: Silverwave, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
9.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Champagne
Jewels
19j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1984

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seikata-wm-02788a31d6db