Seiko Cal. 5257 - 442

The Seiko 5257-442 represents an important milestone in Seiko's 1974 lineup. Powered by the 5257 caliber with 27j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-45ea876f189f]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1974

Related Models

• Seiko 0789-871
• Seiko 0772-564
• Seiko 3844-266
• Seiko 6357-795
• Seiko 6233-509
• Seiko 7148-290
• Seiko 7160-648
• Seiko 4488-974
• Seiko 7073-471
• Seiko 5671-226
• Seiko 4475-213
• Seiko 6633-932