Seiko Cal. 4431 - 653

Seiko 4431-653

The 4431-653 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-c9ecccbc911f]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
11.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1965

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