Seiko Cal. 5686 - 639

The 5686-639 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5686 caliber with 18j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-d6fea8ddc6a9]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1992

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