Seiko Cal. 6615 - 336

This Spring Drive model from 1970 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-978ffa55f8fa]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1970

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