Seiko Cal. 6637 - 153

The Seiko 6637-153 represents an important milestone in Seiko's 1989 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-35feb9dea776]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1989

Related Models

• Seiko 6111-865
• Seiko 4544-234
• Seiko 6271-421
• Seiko 6369-600
• Seiko 7079-776
• Seiko 6133-976
• Seiko 3841-198
• Seiko 6164-752
• Seiko 3833-439
• Seiko 5210-984
• Seiko 6396-189
• Seiko 7031-332