Seiko Cal. 0787 - 631

The 0787-631 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 0787 caliber with 29j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-7ef0a0211840]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1975

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