White Date Regulated NH34 NH34A GMT Automatic Watch Movement for Seiko (SII/TMI)

Summer Sale – Until August 31 st

Order: 15 Jul

Assembly: 17 Jul - 19 Jul

Delivery: 18 Jul - 22 Jul

Specs:

Caliber number: NH34 Seiko SII (TMI) Watch Movement
Up to 41+ hours of power reserve
Movement type: automatic
Frequency/Vibrations per hour: 21600 bph
Includes watch stem and dial washer (Set the washer’s edges pointing upwards – see second image in gallery or below illustration)
Ligne / MM Size: 12″‘ / 26.00 mm
Height: 5.32 mm
Height with cannon pinion: 7.55 mm
Outer Diameter: 27.40 mm
Casing Diameter (with dial holding spacer): 29.36 mm
Hand Hole Sizes (H/M/S): 150/89/21
Regulated Movement +/- 8 sec
Hack-second or stop-second feature allows you to set the time precisely
24 Jewels
Function: 4 Hands including a 2nd hour hand for GMT function, automatic and manual winding, date function
Winding Direction: Clockwise
White Date calendar at 3:00
Compatible with both crown at 3 & 4

The Seiko Mod Nautilus offers a modern take on one of the most iconic luxury watch designs of all time. Featuring a distinctive horizontal striped dial and brushed 316L stainless steel case and bracelet, this timepiece captures the essence of the original Nautilus while incorporating modern watchmaking techniques.

Specs:

Caliber number: NH34 Seiko SII (TMI) Watch Movement
Up to 41+ hours of power reserve
Movement type: automatic
Frequency/Vibrations per hour: 21600 bph
Includes watch stem and dial washer (Set the washer’s edges pointing upwards – see second image in gallery or below illustration)
Ligne / MM Size: 12″‘ / 26.00 mm
Height: 5.32 mm
Height with cannon pinion: 7.55 mm
Outer Diameter: 27.40 mm
Casing Diameter (with dial holding spacer): 29.36 mm
Hand Hole Sizes (H/M/S): 150/89/21
Regulated Movement +/- 8 sec
Hack-second or stop-second feature allows you to set the time precisely
24 Jewels
Function: 4 Hands including a 2nd hour hand for GMT function, automatic and manual winding, date function
Winding Direction: Clockwise
White Date calendar at 3:00
Compatible with both crown at 3 & 4

Additional information

Age Group	Adult
Brand	Aftermarket
Brands	Seiko
Categories	Other Parts
Fabrics	Stainless Steel
Gender	Unisex

Additional Information

Satisfaction Guaranteed or Your Money Back

Take no risks. If you’re not fully satisfied with your purchase, you can return it within 30 days. This guarantee starts from the moment you receive your package

Included with Your Watch

Strap removal tool
Spring bars
Instruction (with some straps)

Shipping Options

Standard (8-15 days): Free

Priority (7-10 days)

Express (24-72 hours)

Shipping fees vary based on destination, and delivery time is calculated after assembly is completed.

Craft Your Own

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