Seiko Cal. 5631 - 983

Seiko 5631-983

The 5631-983 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-f4424faa82ec]

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
8.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
17j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1989

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