|Winding:||Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding|
|© Seiko Seiko Cal. 8L55 was only used in the limited-edition Prospex SLA025||Complications:||Date, Hacking Seconds, Hand Winding, Quick Date Correction|
|Hands:||Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00|
|Distinguishing Technical Characteristics|
Clockwise Balance Cock
|Production: 2015 – 2019|
Cal. 8L55 is a Hi-Beat automatic movement used in the Seiko Prospex SLA025/SBEX001 dive watch. It is a variant of the Grand Seiko 9S85 movement with simpler finishing and adjusted to a lower standard of accuracy. The movement was used in a few rare Prospex dive watches from 2015 through 2019 but is best known for powering the limited edition Prospex SLA025, a re-creation of the 1968 6159-7001 which won the prestigious GPHG award in the Dive Watch category in 2018.
- 2015-2016 Seiko Prospex SLA025/SBEX001 Hi-Beat Diver (LE of 700 pieces)
- 2018 Seiko Prospex Marinemaster Professional SBEX005
- 2018 Seiko Prospex Diver 300m Hi-Beat Ref. SLA025 (LE of 1,500 pieces)
Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.
|Cal. 8L55||2015-present||36,000||37||Date||Prospex SLA/SBEX|
|Cal. 8L88||2008-2009||43,200||41||Power reserve||Credor GBBX998|
|Cal. 9S85||2009-present||36,000||37||Date||Grand Seiko SBGH|
|Cal. 9S86||2014-present||36,000||37||Date, GMT||Grand Seiko SBGJ|