Seiko Cal. 0740 - 604

The Seiko 0740-604 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-2e525aba12cb]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1991

Related Models

• Seiko 6685-549
• Seiko 7078-658
• Seiko 5242-714
• Seiko 5635-473
• Seiko 6117-280
• Seiko 3868-793
• Seiko 5660-505
• Seiko 5632-793
• Seiko 7174-509
• Seiko 7164-231
• Seiko 6130-130
• Seiko 6691-453