Seiko Cal. 5630 - 236

Released in 1968, the Cal. 5630 with design code 236 was part of Seiko's domestic market collection. With its 19mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-ba4532fb2928]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1968

Related Models

• Seiko 4447-634
• Seiko 6114-386
• Seiko 4466-333
• Seiko 5693-305
• Seiko 6616-915
• Seiko 7181-692
• Seiko 6178-101
• Seiko 4481-280
• Seiko 6621-326
• Seiko 3867-253
• Seiko 6229-861
• Seiko 4561-548