Seiko Cal. 6140 - 257

The Seiko 6140-257 represents an important milestone in Seiko's 1991 lineup. It features a White dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-505bc9eaa5bb]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1991

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