Seiko Cal. 5688 - 419

This Solar model from 1971 features a 36mm Titanium case. Powered by the 5688 caliber with 27j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-b20cfe360703]

Also known as: Tuna, Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1971

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