Seiko Cal. 6631 - 749

Seiko 6631-749

The 6631-749 is a sought-after Kinetic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-4941d9cd8a4b]

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1965

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