Steeldive SD1986 tuna dive watch with red dial and steel bracelet, front studio view

STEELDIVE SD1986 — Steel Bezel 47.5MM Case Sapphire Glass 300M NH35 Dive Watch

86RE-03L
$159.99 USD
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Steeldive SD1986 tuna dive watch with red dial and steel bracelet, front studio view

STEELDIVE SD1986 — Steel Bezel 47.5MM Case Sapphire Glass 300M NH35 Dive Watch

$159.99 USD
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Product Details

The STEELDIVE SD1986 is a big-size 46.5mm professional-grade tool diver with monocoque-style heft, built around the Seiko NH35 Automatic movement and engineered with proper dive-watch tolerances. Defining features include oversized broad-arrow hands, broad lume plots and serious wrist presence, giving it instant on-wrist character that reads more expensive than the price suggests. Build details include the 47.5 mm 316L Stainless Steel case, a Sapphire (AR-coated) crystal for everyday scratch resistance, a Stainless Steel bezel for accurate dive timing, and 300m of water resistance with a screw-down crown. The Japanese movement inside is the same workhorse calibre used across the modder community for over a decade — 24 jewels, hacking seconds, manual winding and a real-world ~41-hour power reserve that keeps it running through a full weekend off-wrist. It suits divers, tool-watch collectors and everyday wearers looking for serious build quality, Japanese-movement reliability and proper dive-watch construction at a fraction of Swiss pricing. Available in 10 colourway / strap options — each piece ships in the original STEELDIVE presentation box with diver's extension tool and warranty card. Add the STEELDIVE SD1986 to your rotation at PrimeTimepiece for worldwide shipping and full buyer-protection on every order.

Specifications

Brand STEELDIVE
Model SD1986
Movement Seiko NH35 Automatic
Case Material 316L Stainless Steel
Case Diameter 47.5 mm
Case Thickness 15 mm
Bezel Stainless Steel, 120-click Unidirectional
Crystal Sapphire (AR-coated)
Strap Material 316L Stainless Steel Bracelet
Lume BGW9 + C3 Super-LumiNova
Water Resistance 300m
Functions Dive
Care & Maintenance

Designed for everyday wear, this watch requires minimal maintenance to stay looking its best. Simple care such as keeping it clean and storing it properly when not in use is all that’s needed to preserve its appearance and performance over time. For added peace of mind, care guidelines are provided to help keep your timepiece in excellent condition.

Size & Fit

Each timepiece is thoughtfully crafted to provide a comfortable, well-balanced fit on the wrist. Every watch is equipped with an adjustable band, making it easy to achieve a secure, personalized fit for both smaller and larger wrists, ensuring lasting comfort throughout the day.

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