Orient Sun & Moon vs Seiko Spirit Green

Side-by-side comparison of specifications and features

OrientSun & Moon

RA-AS0002B10B

SeikoSpirit Green

SBTR017

Key Differences

Best Value

Seiko Spirit Green (SBTR017)

Starting from $140

Best Water Resistance

Seiko Spirit Green (SBTR017)

100m (2x more)

Slimmest

Seiko Spirit Green (SBTR017)

11.6mm thick

Price Comparison

Orient Sun & Moon

MSRP

$370

New

$325

Used

$280

Seiko Spirit Green

MSRP

$140

New

$170

Used

$165

MSRP New (Amazon) Used (eBay)

Comparison of Orient Sun & Moon, Seiko Spirit Green
Specification	Orient Sun & Moon	Seiko Spirit Green
Pricing
MSRP	$370	$140
New Price	$325	$170
Used Price (Low)	$280	$165
Used Price (High)	$727	$532
30-Day Trend	↑ +18.0%	↑ +10.4%
Used Price Range	$280 - $727	$165 - $532
Identity
Reference	RA-AS0002B10B	SBTR017
Nickname	N/A	N/A
Style	Dress	Dress
Release Era	2010s	N/A
Dimensions
Diameter	41.5mm	39.8mm
Thickness	13mm	11.6mm
Lug Width	22mm	20mm
Lug to Lug	49.5mm	47mm
Movement
Movement	Automatic	Quartz
Power Reserve / Battery	N/A	N/A
Accuracy	N/A	N/A
Case
Case Material	Stainless Steel	Stainless Steel
Crystal	Mineral Crystal	Mineral Crystal
Water Resistance	50m (swimming)	100m (recreational diving)
Bezel	Fixed	N/A
Dial
Dial Color	Blue	N/A
Luminous	No	No
Community
Review Rating	N/A	N/A
In Collections	N/A	N/A
On Wishlists	N/A	N/A
Forum Threads	N/A	N/A

Quick Summary

Orient Sun & Moon and Seiko Spirit Green can overlap on price or use case, but the buying decision usually comes down to mechanical feel versus low-maintenance convenience, water-ready utility versus dressier everyday wear, entry price versus premium finishing or specs. They both touch the dress use case, so smaller spec differences can matter more than brand preference.

How to choose

The biggest practical difference is usually movement and upkeep. Start with wrist fit and movement preference, then use water resistance and price to break the tie.

Orient Sun & Moon

Orient Sun & Moon is a better fit for buyers who want more wrist presence, mechanical-watch enthusiasts, dress styling.

Seiko Spirit Green

Seiko Spirit Green is a better fit for smaller wrists, low-maintenance daily wear, dress styling.

Key Differences

Movement and upkeep

Orient Sun & Moon: automatic movement

Seiko Spirit Green: quartz movement

Orient Sun & Moon uses a automatic movement, while Seiko Spirit Green uses a quartz movement — that changes day-to-day ownership, upkeep, and the overall feel on the wrist.

Size and wearability

Orient Sun & Moon: 41.5mm · L2L 49.5mm

Seiko Spirit Green: 39.8mm · L2L 47mm

Their size profiles are relatively close, so fit comes down to shape, weight, and how each watch sits on your wrist.

Water resistance

Orient Sun & Moon: 50m

Seiko Spirit Green: 100m

Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use.

Price and value

Orient Sun & Moon: $325

Seiko Spirit Green: $140

There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.

Style and use case

Orient Sun & Moon: dress

Seiko Spirit Green: dress

Both lean into a similar dress use case — the choice is more about fit, features, and price than category.

Crystal and materials

Orient Sun & Moon: mineral crystal · steel

Seiko Spirit Green: mineral crystal · steel

Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.

Choose Orient Sun & Moon If...

You prefer a mechanical watch experience and do not mind more upkeep.
You are comfortable paying more for a stronger feature set.

Choose Seiko Spirit Green If...

You want a lower-maintenance daily watch.
Swimming, beach use, or tougher daily wear is part of the plan.
You want the lower current entry price.

Price and Value Notes

Seiko Spirit Green is often the value play at current pricing, while Orient Sun & Moon makes more sense if you will use its extra features regularly.

There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.

Where to Check Deals

Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.

Check current deals on Amazon and eBay

Prices change often, so compare the latest listings and condition options before you buy.

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Orient Sun & Moon

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $400 · Live listings

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Seiko Spirit Green

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $230 · Live listings

Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.

Comparison FAQ

Which movement is easier to live with day to day?

Quartz and solar models are usually easier for grab-and-go use, while automatic and manual watches appeal more to buyers who enjoy the mechanical side of watch ownership.

Which one is better for smaller wrists?

Start with case width and lug-to-lug. The watch that looks smaller on paper is often the safer choice, but lug shape and thickness still affect how it wears.

Which is better for swimming or rough daily wear?

Use the water resistance row as the first filter. Higher ratings generally give more flexibility for swimming and water exposure, but strap choice and overall condition still matter.

Should I choose based on price alone?

Price matters, but the better buy is the watch that matches your fit, feature priorities, and use case. Check live listings first, then decide whether the price gap actually changes the ownership experience.