Seiko Cal. 7025 - 527

This Spring Drive model from 1966 features a 40mm Hardlex-Coated Steel case. Powered by the 7025 caliber with 23j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-20d1be8e8d3a]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1966

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