Seiko Cal. 6136 - 312

This Spring Drive model from 1972 features a 37mm PVD Black case. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-b4912affc84e]

Also known as: Monster, Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1972

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