Seiko Cal. 6687 - 433

The 6687-433 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6687 caliber with 33j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-d2b701de9d4c]

Also known as: Goldfeather, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1971

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