Seiko Cal. 5681 - 858

The 5681-858 is a sought-after Solar piece from Seiko's golden era. Powered by the 5681 caliber with 25j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-56ef8c49cdd7]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1977

Related Models

• Seiko 0775-457
• Seiko 5689-269
• Seiko 4423-802
• Seiko 5296-449
• Seiko 5230-111
• Seiko 6316-529
• Seiko 4588-499
• Seiko 4517-813
• Seiko 5616-643
• Seiko 3888-272
• Seiko 7174-716
• Seiko 3826-216