Seiko Cal. 5687 - 740

The 5687-740 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5687 caliber with 17j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-dabb79fe4699]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1999

Related Models

• Seiko 5270-995
• Seiko 5222-217
• Seiko 0754-521
• Seiko 5218-302
• Seiko 4474-507
• Seiko 4424-457
• Seiko 0711-983
• Seiko 5628-617
• Seiko 6258-790
• Seiko 6636-300
• Seiko 4544-242
• Seiko 4418-858