Seiko Cal. 6399 - 810

Seiko 6399-810

The 6399-810 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6399 caliber with 31j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-a81b834b1411]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
9.5mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Navy
Jewels
31j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1997

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seikata-wm-a81b834b1411