Seiko Cal. 5687 - 665

The 5687-665 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5687 caliber with 26j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-62b4c9b6c15b]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1967

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