Seiko Cal. 4527 - 636

The Seiko 4527-636 represents an important milestone in Seiko's 1986 lineup. Powered by the 4527 caliber with 17j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-723f945c09dd]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1986

Related Models

• Seiko 0781-262
• Seiko 6297-917
• Seiko 7060-827
• Seiko 5669-685
• Seiko 7015-626
• Seiko 5271-758
• Seiko 3876-656
• Seiko 7086-388
• Seiko 4548-154
• Seiko 4480-884
• Seiko 6122-305
• Seiko 7175-447