Seiko Cal. 5654 - 725

The Seiko 5654-725 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-2f86c9044824]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

Related Models

• Seiko 6614-416
• Seiko 4585-487
• Seiko 4579-975
• Seiko 6247-585
• Seiko 7077-654
• Seiko 7057-308
• Seiko 4443-328
• Seiko 4423-640
• Seiko 4484-120
• Seiko 4550-661
• Seiko 5628-160
• Seiko 0795-741