# The 4R Caliber — Browse, Compare & Collect

> Browse, Compare & Collect (iPhone/iPad app by LEE NIGEL MURRAY-KING.)

- Source: https://appshunter.io/ios/app/the-4r-caliber/id6807063921 (this page in markdown: same URL + `.md`)
- Developer: [LEE NIGEL MURRAY-KING](https://appshunter.io/developer/6807063923)
- Category: Reference, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1.3 GB
- Languages: American English
- Released: 2026-09-22
- Data updated: 2026-09-24
- User reviews in markdown: https://appshunter.io/ios/app/the-4r-caliber/id6807063921/reviews.md

## What is The 4R Caliber?

The 4R Caliber is an independent, unofficial reference and collection-tracking app for Seiko watch enthusiasts. It is not affiliated with, endorsed by, or sponsored by Seiko Corporation.

Browse the entire current global lineup — every collection, every region-exclusive release, every dial variation — searchable by model number. Explore a decade of past models in the archive, with a fun fact about each watch's caliber and history.

FOR COLLECTORS
• Mark watches as Owned or add them to your Wishlist
• Track price paid vs. retail price, with running totals across your collection
• Record condition, purchase location, and serial number for each watch you own
• Add your own photo of your actual watch, not just the catalog shot
• Export your whole collection as a PDF — ready for insurance records

FOR RESEARCH
• Compare any two watches side-by-side, spec for spec
• See when a caliber was first introduced, so you know what's new and what's a Seiko workhorse
• Get a rough fit hint based on your wrist size
• One-tap search to shop for any watch across the web


## Version history (last 1 release)

### 1.0 — 2026-09-22

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-24.*