Seiko Cal. 6140 - 437

The Seiko 6140-437 represents an important milestone in Seiko's 1989 lineup. Powered by the 6140 caliber with 35j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-1b06a49cc5ad]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1989

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