Seiko Cal. 5276 - 391

The Seiko 5276-391 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-f46da7a25547]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1974

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