Seiko Cal. 6140 - 737

The 6140-737 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6140 caliber with 35j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-075e624c7e5f]

Also known as: Tuna, Silverwave

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1974

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