Seiko Cal. 5667 - 618

The Seiko 5667-618 represents an important milestone in Seiko's 1965 lineup. Powered by the 5667 caliber with 23j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-98d64302274e]

Also known as: Sumo, Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1965

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