Seiko Cal. 5642 - 748

This Solar model from 1986 features a 40mm Titanium case. Powered by the 5642 caliber with 26j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-7d3c26573a4e]

Also known as: Tuna, Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1986

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