Seiko Cal. 6397 - 774

Seiko 6397-774

The Seiko 6397-774 represents an important milestone in Seiko's 1991 lineup. Powered by the 6397 caliber with 17j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-3d68ed7adefc]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
15.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1991

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