Seiko Cal. 3864 - 644

Seiko 3864-644

The 3864-644 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-50940279cb22]

Also known as: Tuna, Panda

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
12.7mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
White
Jewels
23j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1978

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seikata-wm-50940279cb22