Seiko Prospex Marinemaster Professional Diver MM300 Black Dial SLA021 SLA021J1 SBDX023
Seiko Prospex Marinemaster Professional Diver MM300 SLA021 SBDX023 stock

Seiko Prospex Marine Master Mechanical Automatic Professional 300M Diver SLA021

Regular price $2,699.00 USD $2,399.00 USD Sale

Seiko Prospex Marinemaster Mechanical Automatic Professional Diver 300M "Gold Seconds MM300"

(JDM Model: SBDX023)

SLA021 Specifications:

Caliber: 8L35
Movement Type: Automatic with manual winding capacity
Accuracy: +15 to -10 seconds per day
Power Reserve: Approx. 50 hours
28,800 vibration/hour
Antimagnetic: Equipped
Jewels: 26

Case Material: Stainless steel (super hard coating) with stainless steel bezel
Crystal: Sapphire
Crystal Coating: Anti-reflective coating on the inner surface
LumiBrite: Lumibrite on hands and indexes

Other Details
Water Resistance: 300m / 1000ft for saturation diving
One-piece structure
Screw-down crown
Three-fold clasp with secure lock
Unidirectional rotating bezel
Date display
Stop-seconds hand function

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