Seiko Cal. 6138 - 729

The Seiko 6138-729 represents an important milestone in Seiko's 1987 lineup. Powered by the 6138 caliber with 25j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-2059a4cb5c1d]

Also known as: Monster, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1987

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