Seiko Cal. 4530 - 812

The Seiko 4530-812 represents an important milestone in Seiko's 1971 lineup. It features a Navy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-30d0c6d4f3a7]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1971

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