Seiko Cal. 5631 - 754

Released in 1967, the Cal. 5631 with design code 754 was part of Seiko's domestic market collection. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-6bb0ec489c6d]

Also known as: Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1967

Related Models

• Seiko 3877-868
• Seiko 4414-976
• Seiko 4477-661
• Seiko 7110-866
• Seiko 0737-539
• Seiko 7139-377
• Seiko 6233-147
• Seiko 6394-432
• Seiko 5634-523
• Seiko 6210-104
• Seiko 7052-325
• Seiko 5683-935