Seiko Cal. 4436 - 431

Seiko 4436-431

The 4436-431 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-713deb1237a3]

Also known as: Sportsmatic

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
White
Jewels
19j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1968

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seikata-wm-713deb1237a3