A retro dive watch works as a daily men's summer watch when it has verified water resistance, readable design, comfortable proportions, and a strap or bracelet suited to heat, sweat, and casual water exposure.

Define the use case before choosing the watch.
| Use case | What to check | Avoid |
|---|---|---|
| Daily summer wear | Case comfort, readability, strap fit | Oversized cases that feel heavy in heat |
| Beach watch use | Water-resistance rating, secure strap, easy cleaning | Leather near sand, salt, and sunscreen |
| Casual swimming | Official water-resistance rating and watch condition | Treating any watch as automatically swim-safe |
| Travel use | Versatile styling, durable case, simple setting | Fragile straps or unclear service support |
| Professional diving | Purpose-built dive watch guidance | Assuming dive-style equals dive-certified |
For a watch for swimming, check the exact model's official water-resistance rating. Time+Tide notes that 100m is commonly discussed for casual swimming and snorkeling, while 200m is more often discussed for scuba diving in general watch guidance. The 1916 Company explains that ISO 6425 dive-watch standards include at least 100m water resistance plus elapsed-time control and legibility requirements.
Do not use a watch in water when the crown is not properly secured, the watch has visible damage, or the official rating does not support the activity.
A daily summer watch must feel stable on the wrist.
Use this checklist:
A strong everyday dive watch should be easy to read quickly. Prioritize a clear Dial, bold markers, visible hands, and limited clutter.
A casual dive watch should not feel like specialist equipment. Choose restrained colors and practical proportions if the watch must work with T-shirts, polos, linen shirts, denim, and casual office clothing.

Choose the strap by exposure, not only appearance.
| Strap or bracelet | Best use | Precaution |
|---|---|---|
| Stainless steel bracelet | Daily wear, beach watch use, smart-casual outfits | Can feel heavier in hot weather |
| Rubber or synthetic strap | Pool, beach, casual swimming scenarios | Looks more casual |
| Nylon strap | Lightweight summer wear and travel | Can stay damp after water exposure |
| Leather strap | Dry smart-casual wear | Keep away from water, sweat, oil, cosmetics, and prolonged direct sunlight |
Real Men Real Style notes that leather can be uncomfortable in summer heat and may be damaged by sweat. For a men's summer watch, reserve leather for dry daily wear.
After saltwater or sand exposure, follow the watch brand's care guidance. Do not assume water resistance covers careless use, impact damage, or worn seals.
A retro dive watch should add character without reducing usability.
Look for:

For heritage styling outside water-use scenarios, explore the 50s Men collection. Use it as a reference for retro design language, not as a swimming recommendation unless a specific product page states the required rating.
Founded in 1955, Shanghai Watch is one of the landmark names in Chinese watchmaking. The brand connects early Chinese mechanical wristwatch development with Shanghai urban culture and Eastern aesthetics. For collectors comparing retro mechanical designs, the article on Shanghai Watch collector appeal provides additional brand context.

Complete these checks before purchase:
For a Shanghai Watch dive-style option, review the Shanghai Watch Classic Diving Watch Green Dial | Gold Strap 41mm. The product page lists a 41.00 mm case diameter, 13.00 mm case thickness, 316L stainless steel case, synthetic sapphire crystal, automatic mechanical movement, date display, stainless steel bracelet, folding clasp, sport style design, diver-inspired elements, and 20 ATM water resistance.
Shanghaiwatch.com is the international official website for cross-border business. Prices include duty-free purchase, free shipping, and VAT. No additional fees will be charged. Official retail channels provide consultation and after-sales support, and proof of warranty is based on purchase information. Customers with valid proof of purchase can receive official genuine-product after-sales service.
For purchase terms and support details, check the official Shanghai Watch FAQ and the current shipping policy before ordering.
What makes a good men's summer watch?
A good men's summer watch is comfortable in heat, readable outdoors, water-resistant for the intended use, and versatile enough for casual and smart-casual clothing.
Can I swim with a retro dive watch?
Swim only when the exact watch's official water-resistance rating and condition support swimming.
Is a swimming waterproof watch actually waterproof?
No watch should be treated as absolutely waterproof. Use the term water-resistant and follow the official rating.
Is a retro dive watch good for everyday wear?
Yes, when the case is comfortable, the Dial is clear, the strap suits daily use, and the design is restrained enough for regular clothing.
How do I buy an authentic Shanghai Watch online?
Purchase through official channels, check the warranty card and packaging, inspect the watch details, keep proof of purchase, and contact official customer service if needed.