Seiko Cal. 5291 - 677

The Seiko 5291-677 represents an important milestone in Seiko's 1990 lineup. Powered by the 5291 caliber with 35j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-84bfb621b4b8]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1990

Related Models

• Seiko 5295-906
• Seiko 0751-159
• Seiko 4590-651
• Seiko 6291-285
• Seiko 5236-854
• Seiko 6145-165
• Seiko 5650-603
• Seiko 4560-865
• Seiko 6619-785
• Seiko 0758-435
• Seiko 6143-975
• Seiko 5664-877