Seiko Cal. 4448 - 309

The 4448-309 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4448 caliber with 28j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-1f88a16b8dee]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1995

Related Models

• Seiko 4434-910
• Seiko 6221-235
• Seiko 4528-254
• Seiko 7053-806
• Seiko 6342-389
• Seiko 7078-138
• Seiko 6627-544
• Seiko 6387-776
• Seiko 5637-930
• Seiko 6635-380
• Seiko 7146-111
• Seiko 6132-434