Seiko Cal. 6240 - 137

The Seiko 6240-137 represents an important milestone in Seiko's 1981 lineup. Powered by the 6240 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-df2561b7cfe9]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

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