Seiko Cal. 5639 - 146

The Seiko 5639-146 represents an important milestone in Seiko's 1975 lineup. Powered by the 5639 caliber with 29j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-4de49ce661d2]

Also known as: Bellmatic, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1975

Related Models

• Seiko 4585-932
• Seiko 6296-710
• Seiko 7114-820
• Seiko 6344-768
• Seiko 6332-156
• Seiko 7089-829
• Seiko 6616-704
• Seiko 6286-272
• Seiko 6366-612
• Seiko 5632-350
• Seiko 5673-885
• Seiko 3855-707