Seiko Cal. 4436 - 380

The Seiko 4436-380 represents an important milestone in Seiko's 1979 lineup. It features a Black dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-827c7f9c5e21]

Also known as: Sea Horse, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1979

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