Seiko Cal. 5685 - 678

Seiko 5685-678

The 5685-678 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5685 caliber with 35j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-dce95c8e4353]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
45mm
Case Thickness
9.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Navy
Jewels
35j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1979

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