Seiko Cal. 6631 - 250

Seiko 6631-250

The 6631-250 is a sought-after Kinetic piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-ece2a3a208ee]

Also known as: Monster, Navigator

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
11.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Cream
Jewels
17j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1969

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