Seiko Cal. 4438 - 404

The 4438-404 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4438 caliber with 29j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-28c3a0563eae]

Also known as: Sumo, Pogue

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1983

Related Models

• Seiko 7095-967
• Seiko 6298-546
• Seiko 0770-128
• Seiko 6317-706
• Seiko 5221-979
• Seiko 3821-670
• Seiko 6118-635
• Seiko 6271-941
• Seiko 4429-145
• Seiko 6150-281
• Seiko 0761-955
• Seiko 0729-754