Seiko Cal. 5266 - 342

The 5266-342 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5266 caliber with 25j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-c4e87e8e02d3]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1978

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