Seiko Cal. 6391 - 487

Seiko 6391-487

The Seiko 6391-487 represents an important milestone in Seiko's 1993 lineup. Powered by the 6391 caliber with 30j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-647708753680]

Also known as: Tuna, Rally

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
38mm
Case Thickness
10.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
110m
Dial Color
Black
Jewels
30j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1993

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seikata-wm-647708753680