Seiko Cal. 3813 - 506

Seiko 3813-506

The 3813-506 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3813 caliber with 29j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-4798bcb55e1c]

Also known as: Panda

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
10.4mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1980

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