Seiko Cal. 7031 - 139

The Seiko 7031-139 represents an important milestone in Seiko's 1967 lineup. It features a Silver dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-134794d4fdde]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

Related Models

• Seiko 6182-359
• Seiko 6660-529
• Seiko 6630-314
• Seiko 6364-618
• Seiko 0710-455
• Seiko 6191-527
• Seiko 7026-172
• Seiko 4491-658
• Seiko 6273-810
• Seiko 5263-717
• Seiko 4553-756
• Seiko 4594-519