Seiko Cal. 5690 - 375

The 5690-375 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5690 caliber with 32j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-ef77fb7a3a8a]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

Related Models

• Seiko 5282-812
• Seiko 7154-726
• Seiko 6356-389
• Seiko 5231-159
• Seiko 7016-626
• Seiko 5698-573
• Seiko 6661-446
• Seiko 4498-171
• Seiko 4587-673
• Seiko 7013-978
• Seiko 5618-640
• Seiko 6141-287