Seiko Cal. 5685 - 509

This Automatic model from 1975 features a 41mm Hardlex-Coated Steel case. Powered by the 5685 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-65d827d81516]

Also known as: Tuna, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1975

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