Seiko Cal. 5640 - 403

This Solar model from 1994 features a 42mm Stainless Steel case. Powered by the 5640 caliber with 18j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-7a51ee81828d]

Also known as: Bullhead, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1994

Related Models

• Seiko 6399-454
• Seiko 6690-574
• Seiko 4518-404
• Seiko 5688-955
• Seiko 5287-151
• Seiko 6642-467
• Seiko 7011-542
• Seiko 4547-298
• Seiko 3852-739
• Seiko 6389-125
• Seiko 6185-127
• Seiko 7162-892