Seiko Cal. 4436 - 663

Seiko 4436-663

The 4436-663 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-a124cb7b210a]

Also known as: Sumo, Bellmatic

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
11.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Cream
Jewels
30j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1972

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