Seiko Cal. 6389 - 707

Seiko 6389-707

The 6389-707 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6389 caliber with 18j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-cb5a2d712c28]

Also known as: Tuna, Flighty

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1973

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