The Seiko SRPA79J1, commonly referred to as the "Monster Tuna," is a formidable dive watch designed to withstand extreme underwater conditions. This timepiece is part of Seiko's Prospex series and is renowned for its rugged durability, precision, and unique design, making it an essential tool for professional divers and a standout piece for watch enthusiasts.
Movement: Caliber: Seiko 4R36 Type: Automatic with manual winding capability Jewels: 24 Power Reserve: Approximately 41 hours Frequency: 21,600 vibrations per hour (6 beats per second) Accuracy: -35 to +45 seconds per day
Case: Material: Stainless steel with black hard coating and protective shroud Diameter: 47.7 mm Thickness: 14.1 mm Lug-to-Lug: 50.7 mm Case Shape: Round Finish: Matte and polished Crystal: Hardlex Crown: Screw-down Case Back: Screw-down with Seiko Prospex logo
Dial: Color: Black with a textured pattern Markers: Applied indices with Lumibrite Hands: Broad arrow-style hands filled with Lumibrite Features: Day and date display at the 3 o'clock position
Bezel: Type: Unidirectional rotating bezel Material: Stainless steel with black insert Scale: 60-minute dive scale with luminescent pip at 12 o'clock
Water Resistance: Rating: 200 meters (20 bar) Suitable For: Professional diving
Additional Features: Lumibrite: Enhanced visibility in low-light conditions Hardlex Crystal: Scratch-resistant and durable Protective Shroud: Provides additional protection to the case Day/Date Function: Convenient day and date display Unidirectional Bezel: Prevents accidental adjustment during dives
The Seiko SRPA79J1 "Monster Tuna" is a robust and reliable dive watch that combines advanced features with a bold design. Its automatic movement, substantial water resistance, and protective shroud make it an ideal choice for serious divers, while its distinctive look ensures it stands out on any wrist. Whether you're exploring the ocean depths or navigating daily adventures, the "Monster Tuna" delivers unmatched performance and style.
