Seiko Cal. 6397 - 689

Seiko 6397-689

The 6397-689 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6397 caliber with 30j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-c5ec5c4d3fc8]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
White
Jewels
30j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1987

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