RUIMAS RF-6735 Open-Heart Automatic Men’s Watch

RUIMAS RF-6735 Automatic Men’s Watch
NH39 Movement · Sapphire Crystal · Stainless Steel Bracelet

The RUIMAS 6735 is a luxury-leaning automatic watch designed for men who want strong presence, mechanical substance, and a refined gold-toned finish. Built around a trusted Japanese movement and solid materials, it delivers both style and reliability in equal measure.

At its core is the Japan Seiko NH39 automatic mechanical movement, known for durability and smooth performance. Powered by motion rather than batteries, it brings authentic mechanical watchmaking to the wrist with dependable daily wear in mind.

The stainless steel case measures 40.5 × 47.5mm with a slim 11.5mm thickness, giving the watch a confident but well-balanced profile. Paired with a stainless steel bracelet that tapers from 20mm to 18mm, it offers a secure, premium feel with a clean, cohesive look. At 132g, the watch feels solid and substantial, reinforcing its luxury character.

A sapphire crystal protects the dial, providing excellent scratch resistance and long-term clarity. With its gold-toned finish and mechanical heart, the RUIMAS 6735 is designed to transition effortlessly from everyday wear to more formal settings.

Key Features:

Automatic mechanical movement

Japan Seiko NH39 calibre

Stainless steel case and bracelet

Sapphire crystal glass

Case size: 40.5 × 47.5mm

Case thickness: 11.5mm

Bracelet width: 20mm tapering to 18mm

Total length: 220mm

Weight: 132g

Men’s design

A bold yet refined automatic watch — combining Japanese mechanical reliability with a gold-accented stainless steel build for men who want luxury that still feels wearable, solid, and real.