Seiko Cal. 6689 - 139

This Spring Drive model from 1965 features a 44mm PVD Black case. With its 20mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-b0b3c23cb143]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1965

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