Seiko Cal. 6399 - 765

Seiko 6399-765

This Hand-Winding model from 1975 features a 37mm Titanium case. Powered by the 6399 caliber with 31j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-639cfe409326]

Also known as: Rally

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
8.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Burgundy
Jewels
31j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1975

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seikata-wm-639cfe409326