Seiko Cal. 7139 - 506

This Spring Drive model from 1980 features a 42mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-877f3f3d821c]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1980

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