Seiko Cal. 4438 - 407

This Hand-Winding model from 1997 features a 43mm Two-Tone case. Powered by the 4438 caliber with 21j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-fe2db902546d]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1997

Related Models

• Seiko 6339-455
• Seiko 5299-391
• Seiko 0751-853
• Seiko 6310-814
• Seiko 3844-387
• Seiko 4436-975
• Seiko 7176-405
• Seiko 5674-951
• Seiko 4526-716
• Seiko 3873-856
• Seiko 4538-361
• Seiko 6373-248