Seiko Cal. 6689 - 871

Seiko 6689-871

The 6689-871 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6689 caliber with 18j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-60873d15c89c]

Also known as: Bullhead, UFO

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
8.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
White
Jewels
18j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1978

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