Seiko Cal. 6689 - 270

The 6689-270 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6689 caliber with 36j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-9075960818c7]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1965

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