Seiko Cal. 6397 - 888

The 6397-888 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6397 caliber with 24j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-e41aa9ab38f2]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1987

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