Seiko Cal. 4431 - 402

Seiko 4431-402

The Seiko 4431-402 represents an important milestone in Seiko's 1972 lineup. It features a Cream dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-1b36abac5928]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.4mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Cream
Jewels
32j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1972

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