Seiko Cal. 6687 - 557

The 6687-557 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6687 caliber with 30j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-f3e7bedf77dc]

Also known as: Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1989

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