Joker GMT-Seiko mods

Descriptions

• Bi-Color "Joker" Bezel Insert: The defining highlight is the 24-hour ceramic bezel insert featuring a split Black (top/night) and Purple (bottom/day) color scheme, accented with bold silver numerals and a top triangular marker.

• Classic Black Dial: Set against a glossy black dial are applied, luminous geometric hour markers (triangular 12 o'clock, rectangular 6 and 9 o'clock, and round indices for the rest) outlined in polished silver.

• Dial Lettering: Features white text displaying the SEIKO logo at 12 o'clock, alongside "MARINE MASTER / AUTOMATIC / PROFESSIONAL / 300m" printed above 6 o'clock.

• Handset: Polished silver hands featuring a classic "Mercedes-style" hour hand, sword minute hand, and a sweeping seconds hand with a circular counterweight.

• Date Display with Cyclops: Located at the 3 o'clock position with a magnified lens (cyclops) integrated into the crystal for easy readability.

• Jubilee-Style Bracelet: Stainless steel multi-link bracelet with brushed outer links and polished center links, offering a comfortable fit and refined contrast.

• Rugged Stainless Steel Case: Robust stainless steel construction with brushed surfaces along the lugs, polished case sides, protective crown guards, and a knurled screw-down crown at 3 o'clock.

Technical Overview

• Movement: Automatic self-winding mechanical movement (typically powered by Seiko NH34/NH35 family movements in custom builds).

• Case Material: 316L Stainless Steel

• Bezel: Bi-directional / Uni-directional rotating bezel with a scratch-resistant ceramic insert.

• Bracelet: Stainless steel Jubilee-style with a folding deployant clasp.

• Features: Magnified date window, dual-time 24-hour bezel markings, luminous markers and hands for low-light visibility.