Seiko Cal. 6687 - 401

The 6687-401 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6687 caliber with 18j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-22a452665ce5]

Also known as: UFO, Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1975

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