Seiko Cal. 6642 - 355

The 6642-355 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6642 caliber with 30j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-002e2f4e236a]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1997

Related Models

• Seiko 4571-543
• Seiko 5271-773
• Seiko 5670-719
• Seiko 4510-743
• Seiko 5257-619
• Seiko 5211-849
• Seiko 3884-668
• Seiko 3895-410
• Seiko 6644-215
• Seiko 5284-540
• Seiko 6343-696
• Seiko 4585-836