Seiko Cal. 4538 - 198

The Seiko 4538-198 represents an important milestone in Seiko's 1987 lineup. Powered by the 4538 caliber with 29j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-cf7fa812e9fd]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1987

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