Seiko Cal. 5633 - 187

The 5633-187 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5633 caliber with 29j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-4ddc6a5b81be]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1974

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