Seiko Cal. 6135 - 631

The Seiko 6135-631 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-aa12674cb320]

Also known as: Monster, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

Related Models

• Seiko 7068-523
• Seiko 7090-237
• Seiko 5221-408
• Seiko 6262-173
• Seiko 7052-721
• Seiko 5243-780
• Seiko 5221-404
• Seiko 0798-115
• Seiko 7142-440
• Seiko 7038-213
• Seiko 6289-139
• Seiko 0715-925