Seiko Cal. 5242 - 636

The Seiko 5242-636 represents an important milestone in Seiko's 1983 lineup. Powered by the 5242 caliber with 23j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-a0dba9f5369f]

Also known as: Tuna, UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1983

Related Models

• Seiko 3821-589
• Seiko 5672-619
• Seiko 0769-714
• Seiko 7176-278
• Seiko 6624-606
• Seiko 0770-206
• Seiko 6623-844
• Seiko 6274-257
• Seiko 7121-724
• Seiko 7075-415
• Seiko 0786-481
• Seiko 6118-866