Seiko Cal. 5638 - 442

This Solar model from 1997 features a 41mm Stainless Steel case. Powered by the 5638 caliber with 28j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-f544c2d49067]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1997

Related Models

• Seiko 4427-397
• Seiko 3865-562
• Seiko 6285-447
• Seiko 7187-599
• Seiko 5258-851
• Seiko 4588-101
• Seiko 6171-211
• Seiko 4529-350
• Seiko 6668-209
• Seiko 7091-687
• Seiko 4484-217
• Seiko 4586-527