Seiko Cal. 6257 - 668

Seiko 6257-668

The Seiko 6257-668 represents an important milestone in Seiko's 1990 lineup. Powered by the 6257 caliber with 28j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-6a1754f252ab]

Also known as: Navigator, Golden Tuna

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
34mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Burgundy
Jewels
28j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1990

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