Seiko Cal. 7091 - 397

The 7091-397 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7091 caliber with 36j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-89d19ff17b44]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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