Seiko Cal. 6639 - 155

The 6639-155 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6639 caliber with 24j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-9754b4881005]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1996

Related Models

• Seiko 5673-159
• Seiko 7086-284
• Seiko 4537-366
• Seiko 6325-761
• Seiko 6659-193
• Seiko 3839-663
• Seiko 0748-855
• Seiko 7119-704
• Seiko 6253-502
• Seiko 6280-253
• Seiko 4527-588
• Seiko 6359-976