Seiko Cal. 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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