Seiko Cal. 4420 - 218

This Spring Drive model from 1998 features a 34mm Two-Tone case. Powered by the 4420 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-f03cc5e71112]

Also known as: Monster, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1998

Related Models

• Seiko 6335-195
• Seiko 7029-340
• Seiko 4425-470
• Seiko 7189-923
• Seiko 5214-373
• Seiko 6343-104
• Seiko 7154-574
• Seiko 3863-783
• Seiko 5642-147
• Seiko 4556-553
• Seiko 7090-497
• Seiko 6160-938