Seiko Cal. 5615 - 622

This Spring Drive model from 1968 features a 35mm Two-Tone case. With its 22mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-305309f29f24]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1968

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