Seiko Cal. 6678 - 156

This Hand-Winding model from 1977 features a 44mm Hardlex-Coated Steel case. Powered by the 6678 caliber with 23j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-286690cdd629]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1977

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