Seiko Cal. 6257 - 440

The Seiko 6257-440 represents an important milestone in Seiko's 1991 lineup. With its 22mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-02ab5b378ad8]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1991

Related Models

• Seiko 4498-843
• Seiko 6314-636
• Seiko 6681-461
• Seiko 6274-852
• Seiko 4451-445
• Seiko 4471-480
• Seiko 7052-951
• Seiko 3856-548
• Seiko 4521-130
• Seiko 6257-710
• Seiko 7151-753
• Seiko 6360-167