Seiko Cal. 4431 - 678

Seiko 4431-678

The 4431-678 is a sought-after Solar piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-f6ea5a5a2bfc]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
39mm
Case Thickness
9.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
White
Jewels
32j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1988

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