Seiko Cal. 5647 - 435

The Seiko 5647-435 represents an important milestone in Seiko's 1990 lineup. Powered by the 5647 caliber with 24j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-bdf285832cd3]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1990

Related Models

• Seiko 6263-506
• Seiko 6339-832
• Seiko 6366-667
• Seiko 7183-355
• Seiko 4460-110
• Seiko 6641-961
• Seiko 6631-153
• Seiko 0765-916
• Seiko 4420-293
• Seiko 3856-533
• Seiko 5257-681
• Seiko 6257-509