Seiko Cal. 5637 - 925

This Automatic model from 1971 features a 42mm PVD Black case. With its 20mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-0f7a81ef7c00]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

Related Models

• Seiko 7074-170
• Seiko 5694-226
• Seiko 5664-383
• Seiko 4554-503
• Seiko 4513-566
• Seiko 6682-971
• Seiko 0715-278
• Seiko 6166-378
• Seiko 3818-649
• Seiko 6156-718
• Seiko 5222-170
• Seiko 4577-396