Seiko Cal. 5649 - 138

The 5649-138 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5649 caliber with 34j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-26b63339066e]

Also known as: Monster, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1976

Related Models

• Seiko 6381-529
• Seiko 5233-412
• Seiko 7012-389
• Seiko 4468-355
• Seiko 7172-156
• Seiko 4472-519
• Seiko 5278-278
• Seiko 6673-464
• Seiko 7095-265
• Seiko 6299-201
• Seiko 7144-526
• Seiko 4549-942