Seiko Cal. 6687 - 557

The 6687-557 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6687 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-2ca4f3997cb7]

Also known as: Samurai, Pogue

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1990

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