Seiko Cal. 5660 - 304

The 5660-304 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5660 caliber with 19j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-f3b35a8a2ad7]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1998

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