Seiko Cal. 5634 - 538

The Seiko 5634-538 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-3b96a8ec3ca7]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1977

Related Models

• Seiko 6275-423
• Seiko 5289-185
• Seiko 0758-509
• Seiko 6173-502
• Seiko 4457-754
• Seiko 6326-449
• Seiko 3823-128
• Seiko 5632-654
• Seiko 5217-824
• Seiko 3890-291
• Seiko 0714-865
• Seiko 7075-976