Seiko Cal. 6370 - 664

Seiko 6370-664

The 6370-664 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6370 caliber with 19j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-b9df10e3498b]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
42mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
30m
Dial Color
Silver
Jewels
19j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1988

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