Seiko Cal. 5681 - 155

The 5681-155 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-4fdec7ff53b9]

Also known as: Tuna, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1990

Related Models

• Seiko 0751-381
• Seiko 3847-111
• Seiko 6335-425
• Seiko 5626-490
• Seiko 7034-257
• Seiko 5269-510
• Seiko 6660-402
• Seiko 6331-227
• Seiko 3827-646
• Seiko 4427-551
• Seiko 4458-644
• Seiko 5680-853