Seiko Cal. 3890 - 391

Seiko 3890-391

The 3890-391 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-dce80390c677]

Also known as: Monster, Sportsmatic

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
10.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Navy
Jewels
25j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1976

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