Seiko Cal. 6678 - 337

The 6678-337 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6678 caliber with 30j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-3833cd329ce2]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1987

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