Seiko Cal. 4520 - 813

Seiko 4520-813

The 4520-813 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-55c79c370172]

Also known as: Panda, Bullhead

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
13.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
White
Jewels
23j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1980

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seikata-wm-55c79c370172