Seiko Cal. 5636 - 657

The Seiko 5636-657 represents an important milestone in Seiko's 1979 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a3a36e9d36f8]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1979

Related Models

• Seiko 6639-804
• Seiko 6248-424
• Seiko 5656-964
• Seiko 5290-977
• Seiko 6241-781
• Seiko 7058-530
• Seiko 4428-128
• Seiko 4451-668
• Seiko 6271-420
• Seiko 7047-317
• Seiko 7194-270
• Seiko 3829-263