Nautilus(Open Heart)Dark blue-Seiko mods

DESCRIPTIONS

• Open-Heart Dial Aperture: Situated at the 9 o'clock position, a circular cutout directly reveals the ticking balance wheel and jewels of the automatic movement inside, adding mechanical action and visual depth to the watch face.

• Deep Blue Horizontal-Textured Dial: Features a rich gradient/deep blue dial with horizontal embossed grooves, catching light across its textured surface.

• Octagonal "Porthole" Case: Inspired by classic luxury luxury integrated-bracelet designs, the case features a soft octagonal bezel with fine vertical satin brushing on top and polished bevels along the edges.

• Applied Baton Indices & Handset: Applied silver-framed hour markers with luminous filling, double baton indices at 12 o'clock, and matching silver baton hands with central luminous inserts.

• Dial Typography: Applied SEIKO logo below 12 o'clock and "AUTOMATIC" printed neatly above 6 o'clock.

• Integrated Stainless Steel Bracelet: Seamlessly flowing from the case, the multi-link integrated bracelet features brushed main links complemented by polished center links and bevels.

• Low-Profile Crown Protection: Subtle case ears on both sides flank the streamlined, knurled crown at 3 o'clock.

Technical Overview

• Movement: Automatic self-winding mechanical open-heart movement (typically built using Seiko NH38 automatic open-heart movements in custom builds).

• Case Material: 316L Stainless Steel

• Bezel: Fixed brushed/polished octagonal bezel.

• Bracelet: Stainless steel integrated link bracelet with a butterfly deployant clasp.

• Features: Open-heart balance wheel display, luminous hands and hour indices, integrated case-and-bracelet design.