Seiko Cal. 5649 - 688

The Seiko 5649-688 represents an important milestone in Seiko's 1976 lineup. It features a Champagne dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-b52642668524]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

Related Models

• Seiko 5227-311
• Seiko 6396-333
• Seiko 5280-464
• Seiko 7094-764
• Seiko 5252-370
• Seiko 4520-845
• Seiko 7160-864
• Seiko 6284-990
• Seiko 6173-235
• Seiko 7024-474
• Seiko 3896-101
• Seiko 7139-154