Seiko Cal. 5678 - 380

The Seiko 5678-380 represents an important milestone in Seiko's 1966 lineup. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-fe1c17c6cbd7]

Also known as: Bullhead, Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1966

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