Seiko Cal. 6631 - 862

Seiko 6631-862

The 6631-862 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-ffc1140d3e22]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
13.1mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
34j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1977

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