Seiko Cal. 3837 - 440

The Seiko 3837-440 represents an important milestone in Seiko's 1987 lineup. Powered by the 3837 caliber with 34j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-f90e67d7cc9a]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1987

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