Seiko Cal. 6231 - 687

Seiko 6231-687

The 6231-687 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-8d4fc9d0bac0]

Also known as: World Timer, Navigator

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
42mm
Case Thickness
15.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1983

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