Seiko "Baby Tuna" SRP Watchsearch

Seiko "Baby Tuna" SRP Watch

Seiko "Baby Tuna" SRP Watch

Where's the price?
To negotiate the best possible price for our members, we must agree to hide our prices externally.

Designed to Be Seen

The Baby Tuna features a case and dial designed for maximum visibility, with large lumed indices and hands against a black background. A day-and-date window sits at 3 o’clock, and an inside 60-minute track features Arabic numerals in 5-minute intervals. The 120-click bezel, offering unidirectional movement, is engraved with a 60-minute scale, with numerals at the 15-, 30-, and 45-minute marks.

Note: This drop is limited to 28 units.

Seiko "Baby Tuna" SRP Watch
Seiko "Baby Tuna" SRP Watch
Seiko "Baby Tuna" SRP Watch

4R36 Movement, Shrouded Case

Equipped with 21-jewel 4R36 movement, beating at 21,600 vibrations per hour, the Baby Tuna is capable of hand-winding and offers hacking seconds. To ensure its 200-meter water resistance, it’s equipped with a screw-down crown, which is situated at the 4 o’clock position. Also ensuring its diveability is the shrouded case, so named for its curved, screw-down caseback and lack of protruding lugs.

Seiko "Baby Tuna" SRP Watch
Seiko "Baby Tuna" SRP Watch
Seiko "Baby Tuna" SRP Watch
Seiko "Baby Tuna" SRP Watch
Seiko "Baby Tuna" SRP Watch


  • Seiko
  • Movement: Seiko 4R36 24-jewel automatic
  • Hand-winding capability
  • Hacking seconds
  • 21,600 vph
  • 41-hour power reserve
  • Case material: Stainless steel
  • Crystal: Hardlex
  • Caseback: Solid
  • Bracelet: Polyurethane
  • Unidirectional rotating bezel
  • Screw-down crown
  • Day display in English & Spanish
  • Date display
  • Case width: 47.5 mm
  • Case thickness: 13.45 mm
  • Lug width: 22 mm
  • Lug-to-lug width: 50.25 mm
  • Water resistance: 200 m


All orders will be shipped by Massdrop.

Estimated ship date is Oct 19, 2017 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.