Seiko Cal. 5240 - 105

The Seiko 5240-105 represents an important milestone in Seiko's 1987 lineup. Powered by the 5240 caliber with 33j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-457fc249ddcd]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1987

Related Models

• Seiko 6272-920
• Seiko 7196-743
• Seiko 6142-614
• Seiko 6625-583
• Seiko 3824-334
• Seiko 6235-589
• Seiko 6192-696
• Seiko 6366-599
• Seiko 6687-339
• Seiko 3877-165
• Seiko 7133-569
• Seiko 6341-893