Item Description

40mm width excluding crown.
22mm lug width.
14.75mm thickness.
Weight on rubber strap: 4.1oz / 117g.
Weight on steel bracelet: 7.5oz / 214g.
316L stainless steel.
Uni-directional 60-click rotating luminous bezel with sapphire insert.
Alternating brushed and high polished finish.
21,600 BPH Sii NH35 Japan automatic movement with hacking and handwinding features.
Sapphire crystal with clear double side anti-reflective coating.
Threaded solid stainless steel caseback.
LUM-TEC MDV Technology®. (2-tone)
Screw lock crown with double diamond sealing system.
300 Meters / 990 ft. water resistance.
2 straps included: Stainless steel bracelet with special ratcheting diver’s extension and molded rubber.
One year limited warranty.
Free lifetime timing adjustments.

Technical Specifications

Case Material: 316L Stainless Steel

Dial Color: Black

Case Size: Width 40 mm x Height 14.75 mm x Length mm

Lug Width: 22

Movement: Sii NH35 Japan automatic movement

Crystal: Sapphire crystal with clear double side anti-reflective coating

Display Back: Solid

Lume: LUM-TEC MDV Technology®. (2-tone)

Water Resistance: 300 M

It seems appropriate to start a review of a Lum-Tec with a picture of their namesake. Eight layers of luminous pigment, in blue and green; makes for a spectacular display at night, or even walking inside to a dark room. This is the LUM-TEC 300M-1, introduced in 2013 and available in 40 or 45mm versions, in either brushed stainless or PVD treatment.

Yes, I like the LUM-TEC 300M-1 quite a lot. I also like that it comes in two sizes, and can be had in PVD if you like black.

- Paul Hubbard

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