Seiko Cal. 5688 - 412

The 5688-412 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5688 caliber with 30j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-28665bf115f0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1989

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