Seiko Cal. 7140 - 620

This Spring Drive model from 1979 features a 40mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-4808aa9841e6]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

Related Models

• Seiko 7145-241
• Seiko 0779-418
• Seiko 3868-348
• Seiko 6670-897
• Seiko 6648-976
• Seiko 6286-173
• Seiko 6351-704
• Seiko 7049-212
• Seiko 7035-676
• Seiko 5263-380
• Seiko 5235-795
• Seiko 5622-151