Seiko Cal. 6257 - 440

The 6257-440 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6257 caliber with 24j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-3fb63c250980]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1965

Related Models

• Seiko 4492-551
• Seiko 5290-490
• Seiko 0752-465
• Seiko 6610-115
• Seiko 3845-991
• Seiko 5658-762
• Seiko 5660-259
• Seiko 4480-178
• Seiko 4455-276
• Seiko 3878-149
• Seiko 3891-563
• Seiko 4540-471