Seiko Cal. 4539 - 799

The Seiko 4539-799 represents an important milestone in Seiko's 1987 lineup. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-e02f4b5a3a18]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1987

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