Seiko Cal. 5637 - 964

The 5637-964 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-78ba6b2d9760]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1993

Related Models

• Seiko 6279-251
• Seiko 4528-331
• Seiko 3875-866
• Seiko 4494-646
• Seiko 5216-237
• Seiko 7085-499
• Seiko 7194-574
• Seiko 7063-971
• Seiko 0786-425
• Seiko 0741-409
• Seiko 6131-332
• Seiko 6387-688