Seiko Cal. 5687 - 837

The Seiko 5687-837 represents an important milestone in Seiko's 1979 lineup. Powered by the 5687 caliber with 25j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-d8f4ff1d3554]

Also known as: Emperor, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

Related Models

• Seiko 3889-641
• Seiko 4464-262
• Seiko 4488-785
• Seiko 0718-274
• Seiko 5213-576
• Seiko 4411-652
• Seiko 4562-467
• Seiko 7010-320
• Seiko 6154-552
• Seiko 7033-659
• Seiko 7176-852
• Seiko 0760-876