# Casio Moonphase MTPM305D Review by A.I. WatchMetrics

## Watch Summary
The Casio Moonphase MTPM305D is a rugged digital tool watch blending sports and adventure styles, featuring a bold resin case with a functional LCD display showcasing moon phase, tide graph, and world time for 48 cities; it's targeted at budget-conscious outdoor enthusiasts like fishermen, hikers, and travelers who need reliable multi-functionality without fuss, powered by Tough Solar quartz technology offering indefinite power reserve with regular light exposure.

## Overall Watch Rating: 5.6/10.0

**Functions Metric (9.0/10.0)** - Packed with world time, alarms, stopwatch, timer, moon data, and tide graph, it outperforms basic digitals like Timex Ironman in everyday utility.
**Movement Metric (8.6/10.0)** - Tough Solar quartz delivers exceptional accuracy and endless power superior to standard battery quartz in watches like Citizen Eco-Drive entry models.
**Versatility Metric (8.5/10.0)** - Excels across travel, adventure, and sports with 100m WR, solar charging, and LED light, rivaling more expensive multi-tools from Garmin.
**History & Innovation Metric (6.5/10.0)** - Casio's pioneering digital and solar tech shines here, on par with their G-Shock lineage but without luxury mechanical heritage.
**Complications Metric (6.0/10.0)** - Moonphase and tide functions add practical complexity akin to mid-tier analogs from Seiko but in digital form.
**Brand Metric (5.0/10.0)** - Solid mid-tier reliability matches Citizen or Seiko in the affordable tool watch segment without luxury prestige.
**Dials & Design Metric (3.5/10.0)** - Clean LCD layout with moon graphic is functional like classic Casio F-91W but lacks the visual flair of modern AMOLED smartwatches.
**Material Metric (2.0/10.0)** - Lightweight resin construction is tough for the price yet trails steel or titanium builds in higher-end divers like the Seiko Prospex.
**Rarity Metric (1.0/10.0)** - Mass-produced digital at under $100 offers no scarcity compared to limited-run microbrands on Chrono24.

## Total Performance Score (TPS): 4.0

## WM Collector Grade: B-

## Performance Insights: Excels in functions, movement, and versatility for unbeatable utility, but lags in materials, design, and rarity; delivers outstanding value well above its $90 price point.
## TPS Interpretation: Outstanding Value: This watch crushes expectations with pro-level solar functions and tools at a fraction of comparable smartwatch pricing.

## Watch Data
[https://www.casio.com/content/dam/casio/japan/products/watch/watch_product_list/moonphase/MTPM305D-1A/main_img.jpg] - [https://www.casio.com/content/dam/casio/japan/products/watch/watch_product_list/moonphase/MTPM305D-1A/back_img.jpg]; [N/A] - [N/A]; [Moonphase Digital] - [Casio]; [Moonphase MTPM305D] - [Japan]; [https://www.casio.com/jp/watches/moonphase/product.MTPM305D-1A/] - [N/A]; [Quartz Solar] - [Tough Solar Module 5592]; [90] - [Rugged digital solar watch with moon phase, tide graph, world time for 48 zones, 5 alarms, stopwatch, countdown timer, full auto LED light, perpetual calendar to 2099]; [52.2] - [50.2]; [16.6] - [28]; [100] - [indefinite]; [N/A] - [LED]; [0] - [Resin]; [Resin] - [Fixed Resin]; [Screw Lock Resin] - [Digital Buttons]; [Resin] - [Tonneau]; [Digital LCD] - [yes]; [yes] - [no]; [no] - [no]; [yes] - [no]; [no] - [yes]; [yes] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [yes]; [yes] - [yes]; [yes] - [yes]; [no] - [yes]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [yes] - [yes]; [yes] - [yes]; [yes] - [no]; [no] - [no]; [no] - [no]; [4.0] - [B-]; [450];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**