Seiko Cal. 7135 - 687

The 7135-687 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-49603db07efa]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

Related Models

• Seiko 4555-484
• Seiko 5258-328
• Seiko 0752-178
• Seiko 4515-833
• Seiko 7078-996
• Seiko 7063-470
• Seiko 6368-854
• Seiko 6391-580
• Seiko 6313-987
• Seiko 7136-984
• Seiko 4459-956
• Seiko 6396-638