Seiko Cal. 4488 - 742

This Hand-Winding model from 1988 features a 35mm PVD Black case. Powered by the 4488 caliber with 21j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-c5ca88b9a5e2]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1988

Related Models

• Seiko 5239-860
• Seiko 5650-822
• Seiko 4519-963
• Seiko 4510-218
• Seiko 6117-223
• Seiko 6262-315
• Seiko 7125-766
• Seiko 6365-655
• Seiko 6622-513
• Seiko 5218-131
• Seiko 5211-539
• Seiko 6361-117