Seiko Cal. 6398 - 307

The Seiko 6398-307 represents an important milestone in Seiko's 1986 lineup. Powered by the 6398 caliber with 35j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-e0e7c3cc98ac]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1986

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