Seiko Cal. 5266 - 252

The 5266-252 is a sought-after Solar piece from Seiko's golden era. Powered by the 5266 caliber with 26j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-ee3bc0ff9a8c]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1972

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