Seiko Cal. 6321 - 177

This Spring Drive model from 1978 features a 43mm PVD Black case. With its 20mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-86a0b66519fc]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1978

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