Seiko Cal. 5634 - 272

The Seiko 5634-272 represents an important milestone in Seiko's 1988 lineup. Powered by the 5634 caliber with 28j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-0c49e06e1852]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1988

Related Models

• Seiko 6693-152
• Seiko 7175-407
• Seiko 5256-404
• Seiko 6231-383
• Seiko 6311-953
• Seiko 7170-134
• Seiko 5234-711
• Seiko 7121-923
• Seiko 5246-533
• Seiko 5212-397
• Seiko 6120-966
• Seiko 6620-821