Seiko Cal. 7140 - 397

The 7140-397 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7140 caliber with 34j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-fdab1bdb73a2]

Also known as: Sea Horse, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1967

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