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Openheart Series

The GodTierMods Open-Heart Series celebrates the intricate beauty of mechanical watchmaking. Each timepiece is powered by the reliable Seiko NH38 movement, featuring an open-heart dial that reveals the rhythmic motion of the escapement — offering a glimpse into the soul of the watch.

Designed with precision and built for elegance, this series combines iconic silhouettes — from Nautilus and Santos to custom dress builds — with sapphire crystal protection and premium stainless steel finishes. Every watch is hand-assembled by our in-house experts, blending bold design with the raw allure of exposed mechanics.

Whether you're a seasoned collector or new to automatic timepieces, the Open-Heart Series offers a timeless statement that beats with character.

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  • Featured
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  • Nautilus Openheart Rosegold Brown - GodTierModsNautilus Openheart Rosegold Brown - GodTierMods
    Nautilus Openheart Rosegold Brown
    Handcrafted by our in-house watch experts, the Nautilus Open-Heart Mod is powered by the reliable NH38 automatic movement, offering a stunning view of the watch's mechanical heartbeat through a precision-cut open-heart dial. Inspired by the iconic Nautilus design, this timepiece features the signature porthole-shaped...
    $238.00 SGD
    $238.00 SGD
  • Nautilus Openheart Blue - GodTierModsNautilus Openheart Blue - GodTierMods
    Nautilus Openheart Blue
    Handcrafted by our in-house watch experts, the Nautilus Open-Heart Mod is powered by the reliable NH38 automatic movement, offering a stunning view of the watch's mechanical heartbeat through a precision-cut open-heart dial. Inspired by the iconic Nautilus design, this timepiece features the signature porthole-shaped...
    $238.00 SGD
    $238.00 SGD
  • Nautilus Openheart White - GodTierModsNautilus Openheart White - GodTierMods
    Nautilus Openheart White
    Handcrafted by our in-house watch experts, the Nautilus Open-Heart Mod is powered by the reliable NH38 automatic movement, offering a stunning view of the watch's mechanical heartbeat through a precision-cut open-heart dial. Inspired by the iconic Nautilus design, this timepiece features the signature porthole-shaped...
    $238.00 SGD
    $238.00 SGD
  • Nautilus Openheart Green - GodTierModsNautilus Openheart Green - GodTierMods
    Nautilus Openheart Green
    Handcrafted by our in-house watch experts, the Nautilus Open-Heart Mod is powered by the reliable NH38 automatic movement, offering a stunning view of the watch's mechanical heartbeat through a precision-cut open-heart dial. Inspired by the iconic Nautilus design, this timepiece features the signature porthole-shaped...
    $238.00 SGD
    $238.00 SGD
  • Nautilus Openheart Black - GodTierModsNautilus Openheart Black - GodTierMods
    Nautilus Openheart Black
    Handcrafted by our in-house watch experts, the Nautilus Open-Heart Mod is powered by the reliable NH38 automatic movement, offering a stunning view of the watch's mechanical heartbeat through a precision-cut open-heart dial. Inspired by the iconic Nautilus design, this timepiece features the signature porthole-shaped...
    $238.00 SGD
    $238.00 SGD

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