Seiko Cal. 3813 - 648

Seiko 3813-648

The 3813-648 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c23a6cb77fe2]

Also known as: Tuna, Goldfeather

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
13.1mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Silver
Jewels
29j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1968

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