Seiko Cal. 5657 - 399

The 5657-399 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5657 caliber with 19j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-0a02ea07a90a]

Also known as: Navigator, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1999

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