Seiko Cal. 5685 - 725

This Automatic model from 1979 features a 41mm Hardlex-Coated Steel case. Powered by the 5685 caliber with 25j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-f31719f71f57]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1979

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