The difference between Seiko sbtr027 and 029 lies in the appearance design and some functional features. Seiko sbtr027 and 029 are two solar watches, both of which have the following functions:
1. Use solar energy to drive, environmentally friendly and energy-saving
2. display, date and day of the week functions;
3. Backlight function, convenient for night reading
4. Secondary stop function, convenient for precise time setting
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5. Alarm function;
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6. Based on the sbtr027, the sbtr029 adopts a stainless steel strap, which improves the appearance and wearing comfort.