Seiko Cal. 7135 - 637

The Seiko 7135-637 represents an important milestone in Seiko's 1977 lineup. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-5a4efe1d209d]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1977

Related Models

• Seiko 6235-767
• Seiko 7116-322
• Seiko 5640-206
• Seiko 5256-141
• Seiko 0731-899
• Seiko 4540-280
• Seiko 4568-795
• Seiko 5264-505
• Seiko 6343-487
• Seiko 6362-855
• Seiko 4445-168
• Seiko 6159-978