Seiko Cal. 6364 - 646

Seiko 6364-646

The 6364-646 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6364 caliber with 27j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-147d3b247edc]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
37mm
Case Thickness
8.4mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1966

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seikata-wm-147d3b247edc