Seiko Cal. 5681 - 866

The 5681-866 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-63d0ca743029]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

Related Models

• Seiko 7129-884
• Seiko 3866-487
• Seiko 4411-433
• Seiko 5694-758
• Seiko 7112-153
• Seiko 6653-810
• Seiko 0720-717
• Seiko 0792-771
• Seiko 7144-778
• Seiko 4410-369
• Seiko 5260-425
• Seiko 3812-108