Chainsaw Man Reze Arc Film x GARRACK Smartwatch Collection

The Chainsaw Man Reze Arc Film x GARRACK Smartwatch Collection is a four-model collaboration between GARRACK — ウエニ貿易タイムピース's character lifestyle brand — and the theatrical film adaptation of Chainsaw Man's most beloved arc: the Reze arc, animated by MAPPA and scored by Kenshi Yonezu. The four models cover Denji, Reze, Makima, and Hayakawa Aki, each with character-specific dial animations, belt designs, and a shared mechanic: when your heart rate rises above a certain threshold, the character on the dial transforms.

On the Denji model, a starter rope is pulled as heart rate climbs — and Denji becomes Chainsaw Man. The battery indicator is a chainsaw that shortens as charge depletes. The belt carries the chainsaw and starter rope motifs. On the Reze model, her choker pin is pulled at elevated heart rate — and Reze becomes Bomb. The fuse shortens as battery drains. The belt uses a floral pattern referencing Reze's character design. On the Makima model, her colouring shifts at elevated HR. A coffee cup's steam disappears as battery falls — a reference to her recurring café scenes. The belt carries her distinctive eye pattern. On the Aki model, colour shifts with HR. A cigarette shortens as battery depletes. The belt is designed with his cigarette smoke. All four models share one notification feature: Pochita appears on screen whenever you receive a notification — the heart at the centre of the series made visible on your wrist.

Key Features:

• Heart Rate-Triggered Character Transformation: Each model's dial character reacts to your physiology — when your heart rate rises above a set threshold, the character transforms. Denji becomes Chainsaw Man. Reze becomes Bomb. The visual trigger makes the watch an active participant in how you use it rather than a passive display.
• Character-Specific Battery Indicators: Each model has a unique battery depletion animation tied to the character's iconography — a chainsaw shortening (Denji), a bomb fuse burning down (Reze), coffee steam disappearing (Makima), a cigarette getting shorter (Aki). Battery status communicated through the series' visual vocabulary.
• Pochita on Every Notification: When a notification arrives on any of the four models, Pochita — Denji's devil companion and the emotional core of Chainsaw Man — appears on the dial. A recurring visual reward that makes the act of receiving a message feel like something other than an interruption.
• Character Belt Designs — Wearable Series Iconography: Each model's silicone band carries imagery drawn from the character's design language — chainsaw and starter rope (Denji), flowers (Reze), eye pattern (Makima), cigarette smoke (Aki). Character-specific presentation box included. Spare band included with each model.
• ~14g Smartwatch — 14-Day Battery, 5ATM, 100 Workout Modes: ~14g without band. Up to 14 days on a full charge; 5 minutes of charging provides approximately 2 days of use. Heart rate, stress (HRV), blood oxygen, sleep tracking. 100 workout modes. Music remote control, alarm, weather, phone finder. 5ATM water resistance. iOS and Android.