Seiko Cal. 6161 - 437

The 6161-437 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6161 caliber with 21j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-974aeb27d925]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

Related Models

• Seiko 6343-357
• Seiko 4431-306
• Seiko 0729-814
• Seiko 0748-543
• Seiko 6670-665
• Seiko 4593-933
• Seiko 7058-896
• Seiko 4565-520
• Seiko 4595-991
• Seiko 5647-782
• Seiko 6270-687
• Seiko 4535-978