Seiko Cal. 6689 - 412

The 6689-412 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6689 caliber with 32j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-061a9e922ec4]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1970

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