This watch can be worn when showering and bathing - it is tested for water resistance up to 5 bar according to ISO 22810. Battery life: Solar rechargeable. 4 months (normal use without exposure to light after full charge). 22 months (when stored in total darkness with the power save function). Titanium v Steel - I find this SO light it almost feels cheap and nasty! I don't mind a bit of weight and the steel ones are so much cheaper so I may go for steel.

The 40mm Casio Lineage LCW-M510D falls somewhere between sports and dressy. Spressy? Drorts? Call it business casual. Bracelet is flexible with a nice finish given how cheap it is, the sizing mechanism is downright futuristicElapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 1 hour.

Bracelet is of an acceptable quality but the finishing is average and it's a massive pain to resize due to the tiny collar each pin uses

I presume this is due to the fact that the orange one is a year or so older and its internal button cell is beginning to age. The bracelet links are connected with a friction-fit pin and collar system. I removed three links to bring it down to my size. The clasp has two micro-adjustment positions. If your wrist doesn’t correspond with a multiple of the links you’re SOL. Set and Forget The series represents the elegant men’s watch that fits any dress code and at the same time offers a number of key features such as Radio Signal Reception, Solar Power and Water Resistance. I have the WVA640 TD (same module) with a bracelet similar to the 170 but with the adjustment like the 100. Perhaps they just don't like not having the option, like it's a 'control thing' and the inanimate object is dictating how it should function....IDK, maybe I'm missing something!

The Lineage LCW-M510D depends on Casio’s Multi Band 6 technology. Every night, the watch synchronizes itself with a radio time signal sent from a transmission station in Japan, North America, UK, Europe or China (depending on your location). If you’re out of range, the quartz watch delivers +/- 15 seconds per month accuracy.It's amazing just how many variations there are for models with the 5161 module from the face colour, negative / positve LCD, Arabic characters on some, to incredibly subtle differences in the design of the hands and indices. The countdown timer emits a signal after a preset period of time has elapsed. The watch has a maximum timing capacity of 100 minutes and can be set in minute-long cycles.

What I'm curious about is why so many owners complain about not being able to turn off the power save function - it's a good thing surely, and the watch wakes up instantly when required. Casio's timepiece merges a strong titanium case with a silver wristband made of titanium. Casio Wave Ceptor Titanium LCW-M100

Set and Forget

I must say that no photo I have seen of the Casio Lineage series gives full justice to the beauty of these watches. I’m OCD about a watch’s second hand hitting its marks. Quartz watches at all price points miss by a tiny bit. Some miss by a lot. When I saw the Lineage LCW-M510D dial design online, I knew the hour index extension lines would make any second hand misalignment super-obvious. They’d either be awesome or be a curse. When I started looking into these watches, I ended up buying the M170. It looks classier, the floating indices and crosshair dial make it stand out a bit more in a sea of generic sports watches, and I figured with dimensions like those it would fit perfect on my 7" wrist. However the design and overall look of the watch make it wear bigger than it is...and I wasn't happy with it. I saw the M100 going for a good price and bought it too to compare, and I'm glad I did. It would have been the icing on the cake with a rating of 100 m or more, but on the other hand the Lineage models are not meant to compete with outdoor watches, they are after all watches designed with dress code in mind, so in reality there is no need for more. A luminous coating provides long-term illumination in the dark after only a short exposure to light.