Seiko Cal. 6257 - 401

This Hand-Winding model from 1972 features a 41mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-f6eafab217aa]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1972

Related Models

• Seiko 5671-627
• Seiko 7082-799
• Seiko 0726-390
• Seiko 6112-465
• Seiko 3825-671
• Seiko 7112-212
• Seiko 4510-447
• Seiko 6173-291
• Seiko 5295-492
• Seiko 6384-501
• Seiko 5613-862
• Seiko 4419-360