Seiko Cal. 6157 - 721

The 6157-721 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6157 caliber with 26j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-4f64b99bb7c3]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1987

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