The Seiko Prospex Digi-Tuna Solar X LOWERCASE Ed. Ref. SBEP005 is the latest offering from Seiko introduced in 2018. And it is a whole new concept from Seiko. It is tuna meets digital. We look at Seiko predominantly for having bang for bucks mechanical dress or sports models in their collection for many years.

Focusing on the Seiko’s Prospex watches; they make mainly tool watches for professional users. The collection is then divided into Sky, Land and Sea. Today we will like to introduce to you yet another collaboration with Japanese Design firm, Lowercase - the Prospex Digi-Tuna Solar X LOWERCASE Ed. Ref. SBEP005.
 

Prospex Digi-Tuna Solar X LOWERCASE Ed. Ref. SBEP005

Those who are not familiar with Lowercase, they are a creative and design consulting firm that does domestic campaigns for major brands like Disney, Nike and now Seiko included. Released this year in 2018 is the Seiko Prospex SBEP005.

Based on the 2017 Fieldmaster case, the new Seiko calibre, S802. The proprietary Solar calibre V147 that operates for a good 5 months when fully charged, or 20 months in power save mode. It has an accuracy of +/- 20 seconds per month. And it has a whole list of features:

- Lumi blight: Available (bezel)
- Rotary bezel
- Four screw fixation backs lid
- Power save function
- Stopwatch function (1/100 second measurement ten hours meter)
- Lap memory function (up to 100)
- Alarm function (daily alarm 3ch)
- Timer function
- Fully automatic calendar function (until December 31, 2067)
- World time function (44 cities)
- Dual time indication function
- Sound demonstration function
- EL light function (tap method)
- Generation level, battery residual quantity indication function
 

Close resemblance to the iconic Tuna Can

The 200m water-resistant “Field Tuna” case bears a size of 49.9mm wide x 49.5mm long, and bears a close resemblance to the “Tuna Can” design due to the outer shroud that gives the watch a tool watch aesthetic with additional protection. The watch fits very well on wrist. It wears smaller than the dimensions suggest, partly due to it’s round case and shot lugs architecture.

Furthermore, it weighs in at a light 80g, almost disappearing into your wrist. Combine this with a soft silicon rubber strap that adds on to the comfortability. Thanks to its EL light function, legibility is tops on this Seiko.
 

EL light function for superb dark legibility

The Seiko Prospex Digi-Tuna Solar X LOWERCASE Ed. Ref. SBEP005 is a Japanese exclusive model, suitable for anyone who are looking for a rugged and a classic Seiko tool watch that does not break the bank.