Seiko Cal. 5681 - 361

The 5681-361 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5681 caliber with 22j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-a1d9e429baff]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1988

Related Models

• Seiko 6618-754
• Seiko 7076-880
• Seiko 7176-374
• Seiko 6252-622
• Seiko 4591-760
• Seiko 7092-709
• Seiko 3817-526
• Seiko 6336-266
• Seiko 6284-124
• Seiko 3841-975
• Seiko 4469-957
• Seiko 4530-453