Seiko Cal. 0715 - 640

The Seiko 0715-640 represents an important milestone in Seiko's 1985 lineup. Powered by the 0715 caliber with 20j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-9b4cb9f68d4d]

Also known as: Sumo, Panda

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1985

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